ANSWER
Molar-incisor pattern periodontitis, Grade C

OTHER OPTIONS
● Localized Stage II, Grade B – Grade B indicates moderate progression and does not fit the rapid destruction seen in adolescents.
● Localized Stage II, Grade C – The characteristic molar-incisor distribution should be identified separately.
● Molar-incisor pattern periodontitis, Grade B – Adolescents with rapid attachment loss are generally classified as Grade C.

SYNOPSIS
● Molar-incisor pattern periodontitis primarily affects first molars and incisors in young individuals.
● Grade C indicates rapid disease progression, disproportionate destruction relative to plaque deposits.
● Localized disease involves <30% of teeth.

REFERENCE
Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification. J Clin Periodontol. 2018

ANSWER
Respect the patient’s autonomy and provide treatment using appropriate infection-control precautions.

OTHER OPTIONS
● Refuse treatment because the patient is unvaccinated – Vaccination status alone is not a valid reason to refuse dental treatment.
● Provide only elective treatment after vaccination – Elective treatment does not require prior vaccination if the patient passes screening.
● Defer treatment until the patient receives the COVID-19 vaccine – Delaying treatment solely because of vaccination status violates the ethical principle of autonomy.

SYNOPSIS
● Standard precautions should be followed for every patient regardless of vaccination status.
● COVID-19 vaccination is recommended but not mandatory to receive dental care.
● Respect for patient autonomy is one of the fundamental ethical principles in dentistry.

REFERENCE
Centers for Disease Control and Prevention. Guidance for Dental Settings.

ANSWER
Keeping the unsheathed needle in the neutral zone until required

OTHER OPTIONS
● Using disposable syringes – Disposable syringes reduce cross-contamination but do not prevent sharps injuries.
● Bending the needle before disposal – Bending needles before disposal increases the risk of accidental injury.
● Recapping the needle using both hands – Two-handed recapping is contraindicated because it increases needle-stick injuries.

SYNOPSIS
● A neutral zone minimizes direct hand-to-hand transfer of sharps.
● Use the one-handed scoop technique when recapping needles.
● Follow standard sharps safety protocols to prevent occupational exposure.

REFERENCE
Miller CH, Palenik CJ. Modern Dental Assisting. 14th Edition.

ANSWER
Report the incident immediately, assess the exposure risk and obtain consent for blood testing.

OTHER OPTIONS
● Prescribe prophylactic antibiotics – Antibiotics do not prevent transmission of blood-borne viral infections.
● Review only the patient’s medical history – Reviewing the medical history alone is inadequate after an occupational exposure.
● Wait for symptoms before taking further action – Delaying management may reduce the effectiveness of post-exposure prophylaxis.

SYNOPSIS
● Wash the injury immediately with soap and water.
● Report the incident according to institutional protocol.
● Assess the need for HIV, HBV and HCV post-exposure prophylaxis.

REFERENCE
CDC. Updated U.S. Public Health Service Guidelines for the Management of Occupational Exposures.

ANSWER
Ledge formation

OTHER OPTIONS
● Root perforation – It usually results from improper access or over-instrumentation rather than root curvature alone.
● Sodium hypochlorite accident – It occur due to irrigant extrusion beyond the apex.
● Vertical root fractures – They are uncommon during routine canal preparation.

SYNOPSIS
● Curved canals significantly increase the risk of ledge formation.
● Establishing a glide path and using flexible NiTi files reduce procedural errors.
● Pre-curved stainless-steel files are recommended during initial negotiation of curved canals.

REFERENCE
Hargreaves KM, Berman LH. Cohen’s Pathways of the Pulp. 12th Edition.

ANSWER
Obturate the canal up to the level of the separated instrument and review periodically.

OTHER OPTIONS
● Obturate all other canals and leave the fractured canal untreated – Leaving the canal unobturated increases the risk of persistent infection.
● Proceed immediately with surgical endodontic treatment – Surgical endodontics is indicated only if pathology persists after nonsurgical treatment.
● Extract the tooth – Extraction is not indicated when the tooth has a favorable prognosis.

SYNOPSIS
● Prognosis depends on the presence or absence of pre-existing infection.
● Retrieval is not mandatory in every case of instrument separation.
● Long-term clinical and radiographic follow-up is essential.

REFERENCE
American Association of Endodontists. Management of Separated Instruments.
Hargreaves KM, Berman LH. Cohen’s Pathways of the Pulp. 12th Edition.

ANSWER
Four

OTHER OPTIONS
● Two – Two canals are the most common anatomical variation but are not the maximum reported.
● Three – Three canals have been reported but are less than the maximum documented anatomy

SYNOPSIS
● Mandibular first premolars exhibit considerable anatomical variation.
● Up to four canals have been reported in the literature.
● CBCT is useful when complex root canal anatomy is suspected.

REFERENCE
Vertucci FJ. Root canal anatomy of the human permanent teeth.

ANSWER
Missed additional root canal

OTHER OPTION
● Excessive irrigation pressure – Irrigation pressure alone would not explain untreated anatomy on the radiograph.
● Poor temporary restoration – Temporary restoration failure is less likely than an untreated canal.

SYNOPSIS
● Radix entomolaris is an additional distolingual root commonly seen in mandibular molars.
● Missed canals are a common cause of persistent post-treatment disease.
● Careful radiographic interpretation and CBCT help identify anatomical variations.

REFERENCE
Hargreaves KM, Berman LH. Cohen’s Pathways of the Pulp. 12th Edition.

ANSWER
Hedström file

OTHER OPTIONS
● K-file – K-files have a relatively non-cutting tip and are primarily used with watch-winding or filing motions.
● Reamer – Reamers are designed mainly for rotational enlargement of canals.
● Barbed broach – Barbed broaches are used to remove pulp tissue rather than shape canals.

SYNOPSIS
● Hedström files cut efficiently on the withdrawal stroke.
● They should not be used with continuous rotary motion because of fracture risk.
● They are more aggressive than K-files during canal preparation.

REFERENCE
Hargreaves KM, Berman LH. Cohen’s Pathways of the Pulp. 12th Edition.

ANSWER
Mandibular occlusal plane parallel to the floor

OTHER OPTIONS
● The maxillary occlusal plane is positioned approximately 60° to the floor during maxillary extractions.
● A 45° inclination compromises operator visibility and access.

SYNOPSIS
● For mandibular extractions, the mandibular occlusal plane should be parallel to the floor.
● For maxillary extractions, the maxillary occlusal plane should be approximately 60° to the floor.
● Proper patient positioning improves visibility, access and operator control.

REFERENCE
Peterson LJ. Contemporary Oral and Maxillofacial Surgery. 7th Edition.

ANSWER
Guided tissue regeneration

OTHER OPTIONS
● Extraction – Unnecessary as Grade 2 mobility with localized resorption can be managed conservatively.
● Root Canal Treatment – Not indicated initially if the pulp is vital and resorption is external periodontal-type.
● Guided Bone Regeneration – Aims only at bone volume loss (e.g., around implants), not true periodontal attachment (cementum, PDL, bone).

SYNOPSIS
● Guided Tissue Regeneration (GTR) uses barrier membranes to block epithelial downgrowth, allowing PDL cells and osteoblasts to regenerate lost periodontal structures in external resorption/infrabony defects.

REFERENCE
Newman and Carranza’s Clinical Periodontology, 13th Edition.

ANSWER
Root Canal Treatment

OTHER OPTIONS
● Extraction – Indicated only if there is a vertical root fracture or non-restorable structure.
● Periodontal Treatment – Perio therapy alone will fail because the lesion is endodontic in origin (primary endo with secondary perio manifestation).
● Hemisection – Not feasible for single-rooted maxillary central incisors.

SYNOPSIS
● Sinus tract tracing with a GP cone provides a definitive radiographic path to the origin of endodontic infection. Mid-root endodontic pathology requires complete chemo-mechanical debridement and obturation.

REFERENCE
Cohen’s Pathways of the Pulp, 12th Edition.

ANSWER
Void in obturation

OTHER OPTIONS
● Canal split – Extremely rare in maxillary central incisors, which typically possess a single straight canal.
● Internal resorption – Appears as a ballooning radiolucency of the root canal wall prior to obturation, not inside the GP material itself.
● Root fracture – Exhibits a radiolucent line crossing the dentin and root surface, often with lateral bone loss.

SYNOPSIS
● Discontinuities or internal clear areas within the radiopaque obturation mass represent incomplete compaction (voids), serving as potential pathways for bacterial recontamination.

REFERENCE
Ingle’s Endodontics, 7th Edition.

ANSWER
Eating Disorder (Bulimia Nervosa)

OTHER OPTIONS
● Bipolar Disorder – Does not directly cause sialadenosis or salivary gland hypertrophy.
● Schizophrenia – Not associated with physical parotid gland enlargement.
● Obsessive-Compulsive Disorder – Lacks somatic systemic manifestations involving salivary glands.

SYNOPSIS
● Sialadenosis (sialosis) is a non-inflammatory, non-neoplastic, painless bilateral enlargement of parotid glands frequently seen in patients with eating disorders (bulimia nervosa) due to repetitive vomiting, autonomic neuropathy, and nutritional deficiencies.

REFERENCE
Neville’s Oral and Maxillofacial Pathology, 4th Edition.

ANSWER
Acetaminophen

OTHER OPTIONS
● Aspirin – Risk of maternal/fetal hemorrhage, premature closure of ductus arteriosus.
● Tetracycline – Causes permanent enamel discoloration and bone growth inhibition in the fetus.
● Ibuprofen – NSAIDs in late pregnancy can cause premature closure of ductus arteriosus and oligohydramnios.

SYNOPSIS
● Acetaminophen (Paracetamol) is classified as Category B (FDA) and is the drug of choice for pain relief during all trimesters of pregnancy when used at therapeutic doses.

REFERENCE
Little and Falace’s Dental Management of the Medically Compromised Patient, 9th Edition.

ANSWER
Local Anesthetic with Epinephrine

OTHER OPTIONS
● Barbiturates – Cause respiratory depression, leading to hypoxia and triggering a sickling crisis.
● Aspirin – May induce acidosis, which enhances red blood cell sickling.
● Narcotics – High doses depress respiration, raising arterial CO2 and precipitating a crisis.

SYNOPSIS
● Routine LA with vasoconstrictors (1:100,000 epinephrine) can be safely used in non-crisis sickle cell patients under aspirating techniques. Respiratory depressants must be strictly avoided.

REFERENCE
Scully’s Medical Problems in Dentistry, 7th Edition.

ANSWER
Von Willebrand Disease

OTHER OPTIONS
● Hemophilia A – Characterized by normal Bleeding Time, normal PT, and prolonged aPTT.
● Thrombocytopenia – Exhibits prolonged BT, but aPTT and PT are strictly normal.
● Acute Leukemia – Shows pancytopenia and variable coagulation parameters, not isolated vWF/Factor VIII defects.

SYNOPSIS
● Von Willebrand Disease (vWD) affects platelet adhesion (prolonging Bleeding Time) and serves as a carrier for Factor VIII (prolonging aPTT). PT remains normal.

REFERENCE
Malamed’s Medical Emergencies in the Dental Office, 7th Edition.

ANSWER
Intravascular injection

OTHER OPTIONS
● Vasovagal attack – Characterized by bradycardia, hypotension, syncope, and pallor.
● Local Anesthetic toxicity – Presents with CNS excitation (slurred speech, tremors) followed by CNS depression.
● Local Anesthetic allergy – Presents with urticaria, angioedema, bronchospasm, and pruritus.

SYNOPSIS
● Accidental intravascular deposition of vasoconstrictor-containing local anesthetic produces an immediate systemic epinephrine surge, leading to transient tachycardia, palpitations, and anxiety.

REFERENCE
Malamed’s Handbook of Local Anesthesia, 7th Edition.

ANSWER
490 mg

OTHER OPTIONS
● 525 mg – Exceeds the absolute maximum safety threshold defined by AAPD/ADA guidelines for Lidocaine.
● 300 mg – Underdosed based on maximum weight-calculated allowance.
● 600 mg – Exceeds safe toxic thresholds for local anesthetics.

SYNOPSIS
● The MRD for Lidocaine is 7.0 mg/kg, up to an absolute maximum ceiling of 500 mg. For a 75 kg patient: 75 kg x 7.0 mg/kg = 525 mg. However, because the absolute cap is 500 mg (or 7.0 mg/kg without exceeding 490–500 mg under various body-weight guidelines), 490 mg represents the safe non-toxic maximum ceiling.

REFERENCE
Malamed’s Handbook of Local Anesthesia, 7th Edition.

ANSWER
Thyroid Storm / Thyrotoxic Crisis

OTHER OPTIONS
● Hypothyroidism – Presents with lethargy, cold intolerance, bradycardia, and hypothermia.
● Vasovagal syncope – Features bradycardia, pallor, hypotension, and loss of consciousness.
● Hyperventilation Syndrome – Presents with lightheadedness, paresthesia of extremities, and carpopedal spasms without severe aggression/midriasis.

SYNOPSIS
● Thyrotoxic crisis (thyroid storm) causes extreme sympathetic hyperactivity: marked tachycardia/palpitations, profuse diaphoresis, dilated pupils, agitation, confusion, and potential psychosis.

REFERENCE
Malamed’s Medical Emergencies in the Dental Office, 7th Edition.

ANSWER
Incision and drainage then antibiotic till subside and extraction

OTHER OPTIONS
● Not applicable

SYNOPSIS
● The immediate priority in a severe, localized swelling is to decompress the tissue to relieve pain and remove toxic pus, thus reducing the risk of spread.
● This is achieved by incision and drainage, often via an extraoral approach for submandibular swelling.
● Antibiotics are necessary to treat the cellulitis component of the infection, but they cannot penetrate a well-formed abscess, making drainage crucial.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Risdon’s approach

OTHER OPTIONS
● Dingman’s Approach – Primarily a supraorbital or zygomatic approach used for reducing displaced zygomatic arch and body fractures.
● Blair’s Approach (Inverted Hockey-Stick) – Traditionally used for parotid gland surgery, it is a preauricular approach that extends down and behind the earlobe, which can be modified for extensive TMJ exposure.
● Thomas Approach – Mentioned in literature as a modification of Blair’s incision, sometimes referred to as Rowe’s extended Blair incision.

SYNOPSIS
● The submandibular approach to the temporomandibular joint (TMJ) and mandibular region is commonly known as the Risdon approach.
● It is an extraoral technique used primarily for mandibular angle and low subcondylar fractures, as well as for some TMJ surgeries.
● The incision is placed approximately 1.5–2 cm below the inferior border of the mandible, often within an existing submandibular skin crease.
● It provides good access to the angle of the mandible, the mandibular body, and the ramus.
● It provides direct visualization for reduction and fixation, particularly for comminuted fractures or when intraoral access is difficult.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Internal derangement with reduction

OTHER OPTIONS
● Internal derangement without reduction – Typically results in a locked jaw, significantly limited mouth opening, and no click
● Rheumatoid arthritis – Often presents with crepitus (grating sound), pain, and long-term joint changes, rather than a simple click.
● MFDS – In MFDS, the primary complaint is usually dull, aching muscle pain and restricted movement rather than a clean, repeatable mechanical click. 

SYNOPSIS
● Based on the clinical presentation of a clicking sound during both opening and closing of the mouth (reciprocal clicking) without significant restricted movement or permanent deformity (asymmetry only during movement), the most likely diagnosis is Internal derangement with reduction (specifically anterior disc displacement with reduction).
● Key findings
– Clicking on opening and closing – This reciprocal clicking indicates that the articular disc is displaced when the mouth is closed, but it relocates (reduces) onto the condyle during opening, and dislocates again upon closing.
– Asymmetry only on opening – The temporary, functional deviation or deflection of the jaw often occurs during the click as the joint momentarily misalignment and then relocates.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
MRI

OTHER OPTIONS
● Computed Tomography – While CT and cone-beam CT (CBCT) are excellent for evaluating the hard bony tissues (cortical irregularities, osteophytes) of the TMJ, they do not show the soft tissue articular disc.
● Arthrography – An older, invasive technique that uses contrast to visualize the disc but has largely been replaced by MRI.
● Traditional Tomography – An older imaging technique used for bone, but largely obsolete due to CT or CBCT

SYNOPSIS
● MRI (Magnetic Resonance Imaging) is considered the gold standard and the preferred diagnostic test for evaluating internal derangements, soft tissues, joint effusion, and disc position, providing high-resolution images of the joint in both closed and open-mouth positions.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Myofacial pain

OTHER OPTIONS
● Internal derangement of TMJ without reduction – This condition typically presents with a hard-end feel and a severe mechanical restriction, usually limited to approximately 25–30 mm. Because the disc is permanently displaced and blocking the condyle, the mouth cannot be significantly opened further even with force.
● Internal derangement of TMJ with reduction – While this involves pain and clicking, it does not typically limit the maximum opening to this extent unless there is an acute locking episode.
● Subluxation of TMJ – This refers to the joint hypermobility where the condyle moves too far forward (beyond the articular eminence). This results in an excessive opening (often more than 50 mm) or the jaw getting stuck in an open position

SYNOPSIS
● In cases of myofascial pain, the restriction in opening is caused by muscle tension or spasms rather than a structural blockage within the joint.
● An initial comfortable opening of 30 mm followed by a maximum assisted opening of 44 mm indicates that the joint itself is capable of a near-normal range of motion (normal is typically 40–55 mm). 
● The 14 mm difference between pain-free and maximum opening strongly suggests a muscular limitation rather than a mechanical one.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Lateral pterygoid

OTHER OPTIONS
● Masseter – This is one of the strongest muscles in the body and is primarily responsible for elevating the mandible (closing the jaw)
● Temporalis – This fan-shaped muscle elevates and retracts the mandible, pulling it upward and backward to close the mouth

SYNOPSIS
● The lateral pterygoid is the primary muscle of mastication responsible for the depression (downward movement) of the mandible, which opens the mouth
● While several accessory muscles assist in this action, it is functionally unique among the four main muscles of mastication because it is the only one that actively opens the jaw
● While the digastric muscle does assist in depressing the mandible, it is considered an accessory (suprahyoid) muscle of mastication rather than the primary muscle responsible for this movement.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
TRUE

OTHER OPTIONS
● Nil

SYNOPSIS
● The masseter muscle is a thick, quadrangular muscle of mastication that originates from the zygomatic arch (lower border and medial surface).
● It extends inferiorly to insert onto the lateral surface of the ramus and the angle of the mandible. 
● It consists of superficial and deep layers that cover the lateral aspect of the mandible.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
CT scan and surgical retrieval under GA

OTHER OPTIONS
● Blind removal – may push tooth further
● Leave and observe – risk of infection, trismus

SYNOPSIS
● If a maxillary third molar is accidentally displaced into the infratemporal space (infratemporal fossa), the standard and most reliable management protocol involves
● Precise Localization – A CT scan (or CBCT) is the imaging modality of choice because traditional radiographs often show overlapping structures that make precise three-dimensional localization difficult.
● Surgical Retrieval – Surgical removal is generally recommended as soon as possible to prevent complications such as infection, trismus (restricted jaw opening), or migration of the tooth further toward the skull base.
● General Anesthesia – While retrieval can sometimes be performed under local anesthesia, General Anesthesia is often preferred to ensure patient comfort, provide a bloodless surgical field, and prevent further displacement caused by sudden patient movement.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Observation

OTHER OPTIONS
● Surgical extraction – not indicated in asymptomatic cases due to high risk of inferior alveolar nerve injury
● Resection – not relevant for impacted third molars
● Enucleation – indicated for cysts or tumors, not for asymptomatic impaction

SYNOPSIS
● Asymptomatic impacted third molars so conservative management preferred
● Close proximity to inferior alveolar nerve leads to high risk of paresthesia if extracted
● Periodic clinical and radiographic follow-up is recommended

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Clean-contaminated

OTHER OPTIONS
● Dirty infected – Used when there is active infection with pus
● Contaminated – Refers to traumatic or heavily contaminated wounds

SYNOPSIS
● Oral cavity procedures are considered clean-contaminated
● Presence of normal oral flora makes it non-sterile and no active infection – makes it clean contaminated.
● Surgical flap procedures fall under this category.

REFERENCE
Peterson LJ. Contemporary Oral and Maxillofacial Surgery, 7th Edition

ANSWER
Sternocleidomastoid

OTHER OPTIONS
● Platysma – A superficial muscle of facial expression that depresses the mandible and lower lip; it does not rotate the head.
● Trapezius – Assists mainly in head extension and shoulder elevation/scapular retraction.
● Splenius Capitis – Functions primarily in head extension and lateral flexion, but Sternocleidomastoid is the primary prime mover for contralateral rotation.

SYNOPSIS
● Sternocleidomastoid (SCM) unilaterally contracts to rotate the head to the opposite side and flex the neck laterally.
● Cervical strain or myofascial pain syndrome involving SCM presents as pain during head turning.
● Platysma is a superficial subcutaneous muscle that plays no significant structural role in joint/head movement.
REFERENCE
BD Chaurasia’s Human Anatomy, Vol. 3: Head and Neck, 8th Edition.

ANSWER
Glossopharyngeal neuralgia

OTHER OPTIONS
● Atypical facial pain – Continuous, dull, aching pain that does not follow a specific anatomical nerve distribution.
● Trigeminal neuralgia – Causes sharp, electric pain along V1, V2, or V3 branches (e.g., cheek, jaw, lips), but typically does not radiate to the posterior tongue, tonsillar fossa, or angle of mandible/ear upon swallowing.
● Temporal arteritis – Characterized by throbbing temporal headache, scalp tenderness, and elevated ESR in elderly individuals.

SYNOPSIS
● Glossopharyngeal neuralgia involves cranial nerve IX and manifests as paroxysmal, severe, lancinating pain in the tonsillar pillar, base of tongue, angle of mandible, and ear.
● Swallowing, chewing, talking, or yawning frequently acts as the trigger mechanism.
● Trigeminal neuralgia involves CN V regions, whereas CN IX distribution accounts for ear and angle of mandible/oropharyngeal pain.

REFERENCE
Neville BW, Damm DD, Allen CM, Chi AC. Oral and Maxillofacial Pathology. 4th ed. Elsevier; 2016.

ANSWER
Follow up

OTHER OPTIONS
● Excision – Unnecessary surgical morbidity for a benign anatomical anatomical variant (Stafne defect).
● Incision – Surgical intervention is non-indicated as no true pathological tissue exists.
● FNAC – Unnecessary invasive procedure for an asymptomatic, pathognomonic developmental anatomical concavity.

SYNOPSIS
● The scenario describes a Stafne defect (static bone cavity), caused by ectopic submandibular salivary gland tissue indenting the lingual cortex below the inferior alveolar canal.
● Classic radiographic features below the mandibular canal near the angle are diagnostic.
● As it is a non-pathologic developmental defect, conservative observation and regular follow-up monitoring are standard.

REFERENCE
White and Pharoah’s Oral Radiology: Principles and Interpretation. 8th ed. Elsevier; 2019.

ANSWER
Erythema migrans

OTHER OPTIONS
● Lichen planus – Characterized by Wickham’s striae (reticular pattern) or erosive lesions, often presenting with symptoms and bilateral buccal mucosa predilection.
● Candidiasis – Pseudomembranous form wipes off leaving a raw surface; erythematous form is typically symptomatic with burning.
● Erythroleukoplakia – Represents a premalignant lesion displaying mixed red and white areas, usually non-migratory and fixed.

SYNOPSIS
● Erythema migrans (Geographic tongue / Benign migratory glossitis) presents as depapillated erythematous patches with cream-colored raised borders.
● It frequently occurs on the dorsum and lateral borders of the tongue and is often asymptomatic.
● Lesions display a classic migratory pattern over time.

REFERENCE
Neville BW, Damm DD, Allen CM, Chi AC. Oral and Maxillofacial Pathology. 4th ed. Elsevier; 2016.

ANSWER
Throbbing headache and hypotension

OTHER OPTIONS
● Xerostomia – Associated with anticholinergics and antihistamines, not acute sublingual nitrates.
● Metallic taste – Common side effect of metronidazole or chlorhexidine, not nitroglycerin.
● Gingival hyperplasia – Associated with calcium channel blockers (e.g., nifedipine), not acute vasodilators.

SYNOPSIS
● Sublingual nitroglycerin acts as a potent systemic venodilator releasing nitric oxide.
● Rapid cerebral vasodilation frequently leads to transient throbbing headache and orthostatic hypotension/reflex tachycardia.
● Dentists must monitor blood pressure prior to and after administration.

REFERENCE
Malamed SF. Medical Emergencies in the Dental Office. 7th ed. Mosby; 2014.

ANSWER
HSV

OTHER OPTIONS
● Lactobacillus – Commensal oral or gastrointestinal bacterium, non-pathogenic for lip vesicular lesions.
● Candidiasis – Fungal infection presenting as white curd-like plaques or erythematous patches, not fluid-filled neurotropic vesicles.
● Streptococcus – Causes impetigo (bullous/non-bullous crusted lesions) or pharyngitis, but non-vesicular recurrent labial clusters.

SYNOPSIS
● Herpes labialis is caused by Herpes Simplex Virus Type 1 (HSV-1), which resides latent in the trigeminal ganglion.
● Streptococcal impetigo can mimic crusted lesions, but classic recurrent neurotropic lip lesions are viral caused by HSV.

REFERENCE
Neville BW, Damm DD, Allen CM, Chi AC. Oral and Maxillofacial Pathology. 4th ed. Elsevier 2016.

ANSWER
Pseudomembranous colitis

OTHER OPTIONS
● Systemic bacteremia – Causes high-grade fever, chills, and sepsis markers, but not isolated acute secretory pseudomembranous diarrhea.
● Allergic drug reaction – Causes urticaria, rash, or anaphylaxis rather than toxin-mediated colonic inflammation.
● Amoebic dysentery – Parasitic infection unrelated to systemic clindamycin therapy.

SYNOPSIS
● Clindamycin disrupts normal intestinal flora, predisposing to overgrowth of Clostridioides difficile.
● C. difficile produces Toxin A and Toxin B, leading to pseudomembranous colitis.
● Symptoms include profuse watery diarrhea, abdominal pain, fever, and leukocytosis.

REFERENCE
Tripathi KD. Essentials of Medical Pharmacology. 8th ed. Jaypee Brothers, 2019.

ANSWER
Incision and drainage (I&D) and removing infectious cause

OTHER OPTIONS
● Prescribe antibiotics and analgesics only – Antibiotics cannot penetrate an avascular abscess cavity effectively without mechanical decompression.
● Extraction only – Immediate extraction without decompressing severe active soft tissue swelling may spread infection if anesthesia fails or trismus is present.
● Incision and drainage only – Drainage without eliminating the source (endodontic treatment or extraction) leads to recurrence.

SYNOPSIS
● Surgical principle for acute dental abscess with fluctuant space swelling is immediate Incision and Drainage (I&D) to relieve tension, lower bacterial load, and promote healing.
● Removing the source of infection (pulpal debridement or extraction) must accompany or closely follow drainage.

REFERENCE
Hupp JR, Ellis E, Tucker MR. Contemporary Oral and Maxillofacial Surgery. 7th ed. Elsevier; 2018.

ANSWER
Stop medicine and change to metronidazole

OTHER OPTIONS
● Add fluconazole to ongoing medication – Fluconazole is an antifungal; it has no activity against bacterial C. difficile.
● Increase amoxicillin dosage – Exacerbates normal flora suppression and worsens colitis.
● Switch to clindamycin – Clindamycin carries the highest risk of worsening C. difficile colitis.

SYNOPSIS
● First step in managing antibiotic-associated pseudomembranous colitis is stopping the offending broad-spectrum beta-lactam.
● Mild-to-moderate initial episodes are managed with oral Metronidazole or oral Vancomycin to eradicate C. difficile.

REFERENCE
Brunton LL, Hilal-Dandan R, Knollmann BC. Goodman & Gilman’s The Pharmacological Basis of Therapeutics. 13th ed. McGraw-Hill; 2017.

ANSWER
Less than 3

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Safe INR range for dental extraction is less than or equal to 3–3.5
● Minor oral surgery can be performed without stopping anticoagulants
● Local hemostatic measures are essential
● Avoid discontinuing anticoagulants unnecessarily
● Physician consultation is necessary if INR is higher or procedure is extensive

REFERENCE
Little JW. Dental Management of the Medically Compromised Patient, 9th Edition

ANSWER
Submandibular space

OTHER OPTIONS
● Sublingual space – Possible if roots are above mylohyoid, but less common for third molars
● Submental space – Located anteriorly, not related to third molar region
● Infratemporal space – Associated with maxillary third molars

SYNOPSIS
● Mandibular third molar roots are often below mylohyoid line
● Perforation of lingual plate can displace tooth into submandibular space
● Proper technique prevents such complications

REFERENCE
Peterson LJ. Contemporary Oral and Maxillofacial Surgery, 7th Edition

ANSWER
Vertical resorption

OTHER OPTIONS
● Horizontal resorption – Generalized bone loss, not typical localized defect

SYNOPSIS
● Vertical (intrabony) defects commonly occur distal to second molar
● Caused by surgical trauma and plaque accumulation
● More common in older patients
● May lead to periodontal pocket formation
● Requires proper post-operative care and monitoring

REFERENCE
Peterson LJ. Contemporary Oral and Maxillofacial Surgery, 7th Edition

ANSWER
Supine

OTHER OPTIONS
● Not applicable

SYNOPSIS
● In advanced pregnancy (especially third trimester), the supine position can cause supine hypotensive syndrome
● Enlarged uterus compresses the inferior vena cava and there is reduced venous return to heart
● Decreased cardiac output results in hypotension
● Correct Dental Positioning
– Left lateral tilt position
– Place pillow under right hip
– Avoid complete supine position
– Semi-supine with slight tilt is acceptable

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Chlorhexidine mouthwash

OTHER OPTIONS
● Refer Synopsis

SYNOPSIS
● Zometa is the brand name of Zoledronic acid
● It is an intravenous bisphosphonate used in metastatic breast cancer and is strongly associated with Medication-related osteonecrosis of the jaw
● This patient likely has Stage 2 MRONJ (pain + infection + exposed bone).
● According to American Association of Oral and Maxillofacial Surgeons, Stage 2 MRONJ Management is
– Chlorhexidine mouth rinse
– Systemic antibiotics
– Pain control
– Superficial debridement only if sharp bone causes irritation
● Aggressive surgical debridement is not first-line because
– It may worsen necrosis
– Bone healing capacity is compromised
● Conservative management is preferred initially

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Injury to the inferior alveolar nerve

OTHER OPTIONS
● Fracture of second molar – Uncommon
● Fracture of bone – Rare unless excessive force used.
● Trismus – Common after surgery but not specific to deep Class C impaction

SYNOPSIS
● A Class C impaction (according to Pell & Gregory classification) indicates that the impacted third molar is positioned below the cervical line of the second molar, i.e., deeply placed in bone.
● Roots are often close to or superimposed on the mandibular canal so it’s removal may require extensive bone removal which may lead to temporary paresthesia or rarely permanent inferior alveolar nerve injury.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Systemic antibiotics, surgical debridement followed by chlorhexidine mouthwash

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Classic dry socket – Severe pain, empty socket, exposed bone, no pus
● Dry socket with pus – Secondary infection present
● If pus is present, this suggests infected alveolar osteitis, so management must address infection.
● Proper Management
– Gentle irrigation (normal saline or chlorhexidine)
– Removal of necrotic debris (careful surgical debridement)
– Systemic antibiotics (if infection present)
– Analgesics
– Chlorhexidine mouthwash

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery

ANSWER
Chorda tympani nerve

OTHER OPTIONS
● Lingual nerve – General sensation (pain, touch, temperature), not taste
● Glossopharyngeal nerve – Taste from posterior 1/3 of tongue
● Hypoglossal nerve – Motor nerve to tongue muscles

SYNOPSIS
● Taste sensation from anterior 2/3 of tongue is by Chorda tympani nerve
● Chorda tympani is a branch of the facial nerve
● It joins the lingual nerve to reach the tongue

REFERENCE
Handbook of Local Anesthesia – Stanley F Malamed – 6th Edition

ANSWER
Medial pterygoid muscle

OTHER OPTIONS
● Masseter muscle – Involved in submasseteric infections, not typically injured during IANB.
● Temporalis muscle – Causes trismus mainly in coronoid or temporal space pathology, not post-IANB
● Lateral pterygoid muscle – More commonly involved in TMJ disorders rather than post-injection trismus.

SYNOPSIS
● The inferior alveolar nerve block (IANB) is administered in the pterygomandibular space, which lies in close proximity to the medial pterygoid muscle.
● Trismus following IANB commonly results from
– Direct needle trauma
– Hematoma formation
– Myositis or spasm of the medial pterygoid muscle
● Spasm or inflammation of this muscle leads to painful restriction of mandibular opening and closing.

REFERENCE
Handbook of Local Anesthesia – Stanley F Malamed – 6th Edition

ANSWER
Gow gates

OTHER OPTIONS
● Inferior alveolar nerve block – Does not anesthetize buccal soft tissues (needs long buccal nerve block separately)
● Posterior superior alveolar nerve block – Maxillary nerve block.
● Infraorbital nerve block – Anesthetizes maxillary anterior and premolar region

SYNOPSIS
● The Gow-Gates mandibular nerve block anesthetizes the entire mandibular division (V3) of the trigeminal nerve.
● Nerves commonly anesthetized include
– Inferior alveolar nerve – pulps of mandibular teeth
– Lingual nerve – lingual gingiva and mucosa
– Long buccal nerve (often) – buccal gingiva of posterior teeth
● Hence, both hard and soft tissues of the lower posterior region are anesthetized with one injection.

REFERENCE
Handbook of Local Anesthesia – Stanley F Malamed – 6th Edition

ANSWER
Aesthetic agent, vasoconstrictor, preservative, sodium chloride, distilled water

OTHER OPTIONS
● Not applicable

SYNOPSIS
● A standard local anesthetic dental carpule contains multiple components to ensure efficacy, stability, and isotonicity.
● Contents of an anesthetic carpule
– Local anesthetic agent (e.g., lidocaine) – produces anesthesia
– Vasoconstrictor (e.g., epinephrine) – prolongs duration, reduces toxicity & bleeding
– Preservative (e.g., sodium metabisulfite) – prevents oxidation of vasoconstrictor
– Sodium chloride – makes the solution isotonic with body fluids
– Distilled water – vehicle (solvent)
(Some solutions may also contain sodium hydroxide or hydrochloric acid for pH adjustment.)

REFERENCE
Handbook of Local Anesthesia – Stanley F Malamed – 6th Edition

ANSWER
Post convulsion depression

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Systemic local anesthetic toxicity (LAST) primarily affects the central nervous system, and it shows a biphasic pattern.
● Typical sequence of CNS effects
– Initial excitation – anxiety, talkativeness, tremors
– Convulsions – due to inhibition of inhibitory neurons
– Post-convulsion depression – characteristic feature
– CNS depression
– Respiratory depression
– Possible coma and cardiovascular collapse
● Therefore, the hallmark or characteristic feature of systemic local anesthetic toxicity is depression following convulsions, not convulsions alone.

REFERENCE
Handbook of Local Anesthesia – Stanley F Malamed – 6th Edition

ANSWER
Adrenal crisis

OTHER OPTIONS
● Hyperglycemia – Symptoms are polyuria, polydipsia not sudden hypotension.
● Adrenal insufficiency – Chronic form, acute emergency is adrenal crisis.
● Hyperthyroidism – It causes tachycardia, anxiety, and hypertension not hypotension.

SYNOPSIS
● If the patient is on long-term steroid therapy for arthritis (e.g., prednisolone), their adrenal gland may be suppressed.
● Stress from dental treatment can lead to acute adrenal crisis.,
● Hypotension is the earliest and most important sign.
– BP 100-75 mmHg is low for a stressed state.
– Warm or weak feeling and discomfort further support a circulatory collapse picture.
● Patients on long-term steroids need stress dose steroid supplementation before major dental procedures to prevent adrenal crisis.

REFERENCE
Medical Emergencies in the Dental Office – Stanley F Malamed 7th Edition

ANSWER
1, 3, and 4 are correct

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Hypoglycemia leads to decrease brain glucose which leads to dizziness and inturn trigger syncope.
● Ganglionic-blocking antihypertensives can cause postural hypotension that can lead to syncope
● Antidepressants (esp. TCAs, SSRIs) causes orthostatic hypotension that leads to syncope
● Mild hyperglycemia does not typically cause fainting – usually asymptomatic

REFERENCE
Medical Emergencies in the Dental Office – Stanley F Malamed 7th Edition

ANSWER
Beak, hinge, handle

OTHER OPTIONS
● Not applicable

SYNOPSIS
● The components of dental forceps are Handle, hinge, beak
● Handle (C)- The part gripped by the operator, often serrated for a firm grip.
● Hinge (or Joint)(B) – Connects the two handles and allows them to pivot.
● Beak (or Tip)(A) – The active, functional working end that engages the tooth root.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
150

OTHER OPTIONS
● 88L – 88R – Used for upper first and second molars.
● 120 – A specialized bayonet-style forceps commonly used for upper third molars (not generally for premolars).
● 151 – Used for lower (mandibular) premolars, not upper.

SYNOPSIS
● The forceps used for the extraction of maxillary upper premolars is the 150 (specifically, 150 or 150A).
● 150 (Universal Upper Forceps) – Designed with a gentle curve to match the maxillary arch, these are ideal for upper premolars, incisors, and canines.
● 150A – An apical version often preferred for premolar extraction.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Lefort advancement

OTHER OPTIONS
● Genioplasty – corrects chin deformity, not maxillary deficiency

SYNOPSIS
● Skeletal Class III malocclusion due to retrognathic maxilla results from maxillary deficiency rather than mandibular excess
● The treatment of choice is maxillary advancement, commonly performed using Le Fort I osteotomy
● Advancing the maxilla improves facial profile, occlusion, and functional relationship between the jaws

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Decreases heat to avoid bone necrosis in cutting

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Bone cutting with burs or surgical drills generates significant heat due to friction
● Saline irrigation is used during oral surgery to cool the surgical site and prevent thermal injury to bone
● Excessive heat can cause bone necrosis and impair healing and osseous regeneration

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Lower branch of the facial nerve

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Mentoplasty or genioplasty involves surgical procedures in the chin region for correction of chin deformities
● The marginal mandibular branch (lower branch) of the facial nerve is at risk during surgical dissection in this area
● Injury to this nerve may lead to weakness or asymmetry of the lower lip

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Luxation

OTHER OPTIONS
● Refer Synopsis

SYNOPSIS
● Extrusive Luxation (Extrusion) – The tooth is partially displaced out of its socket, appearing longer (incisally displaced) and is very mobile.
● Subluxation – Loosening without displacement.
● Concussion – Tender tooth, no loosening or displacement.
● Dehiscence – A defect in the bone.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Zygomatic complex fracture

OTHER OPTIONS
● Le Fort I fracture – Horizontal maxillary fracture without the characteristic tripod involvement.
● Le Fort II fracture – Pyramidal fracture involving the central midface.
● Le Fort III fracture – Craniofacial dysjunction involving separation of the midface from the cranial base.

SYNOPSIS
● Zygomatic complex fracture is also known as a tripod fracture or trimalar fracture.
● The fracture typically involves three major articulations of the zygoma: the frontozygomatic suture, zygomaticomaxillary buttress, and zygomatic arch/orbital region.
● Because three principal fracture lines are involved, it is termed a “triple” or “tripod” fracture.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Root resorption will increase

OTHER OPTIONS
● Root resorption will reduce greatly – Ankylosed replanted teeth generally show progressive replacement resorption over time.

SYNOPSIS
● Ankylosis after tooth replantation commonly progresses to replacement root resorption because the root surface becomes fused directly to alveolar bone.
● Over time, normal bone remodeling gradually replaces the root structure with bone, leading to progressive resorption.
● According to the International Association of Dental Traumatology (IADT) guidelines, ankylosed replanted teeth should be monitored long term because replacement resorption is a common sequela, especially after delayed reimplantation.

REFERENCE
IADT Guidelines for the Management of Traumatic Dental Injuries – Avulsion of Permanent Teeth

ANSWER
7–14 days

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Wound healing proceeds through inflammatory, proliferative, and remodeling phases.
● During the proliferative phase, angiogenesis and granulation tissue formation result in re-establishment of vascularity.
● Functional vascularization of the wound is generally achieved within 7–14 days, which is critical for tissue repair and resistance to infection.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition.

ANSWER
Aluminum chloride

OTHER OPTIONS
● Ferric sulfate – Ferric sulfate is a hemostatic agent used in some gingival retraction products but is not the active ingredient in Hemodent.
● Zinc phosphate – Zinc phosphate is used as a dental cement and has no hemostatic action.
● Ferric chloride – Ferric chloride is not used as the active ingredient in Hemodent.

SYNOPSIS
● Hemodent is an epinephrine-free gingival retraction solution used to control minor gingival bleeding during restorative and prosthodontic procedures.
● Its active ingredient is aluminum chloride, which produces hemostasis by precipitating proteins and constricting superficial blood vessels.
● Aluminum chloride is preferred because it provides effective hemostasis with minimal systemic effects compared with epinephrine-containing agents.

REFERENCE
Shillingburg’s Fundamentals of Fixed Prosthodontics – 4th Edition.

ANSWER
Oxidized cellulose

OTHER OPTIONS
● Gelatin sponge – Gelatin sponge is an absorbable hemostatic agent but is less effective than oxidized cellulose in controlling active bleeding.
● Bone wax – Bone wax is used to control bleeding from cut bony surfaces and is not routinely used in extraction sockets.
● Cotton soaked in epinephrine – Epinephrine provides temporary vasoconstriction but is not considered the most effective local hemostatic measure for significant post-extraction bleeding.

SYNOPSIS
● Persistent post-extraction bleeding is initially managed with direct pressure and local hemostatic measures.
● Oxidized regenerated cellulose (e.g., Surgicel) acts as a matrix for clot formation and effectively controls capillary and venous bleeding.
● Because it is absorbable and biocompatible, oxidized cellulose is widely used in oral and maxillofacial surgery to manage excessive bleeding.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition.

ANSWER
4 implants

OTHER OPTIONS
● 2 implants – Commonly used for implant-retained overdentures rather than fixed prostheses.
● 5 implants – May be used in selected situations but not considered the minimum recommendation.
● 6 implants – Provides additional support but is not routinely required.

SYNOPSIS
● Four implants placed between the mental foramina are commonly sufficient for a fixed full-arch mandibular prosthesis.
● Two implants are the standard of care for mandibular overdentures.
● Additional implants may be indicated depending on bone quality, occlusal load, and prosthetic design.

REFERENCE
Contemporary Implant Dentistry – Carl E. Misch – 4th Edition

ANSWER
Buccal shelf

OTHER OPTIONS
● Hard palate – Primary stress-bearing area of the maxillary denture.
● Residual ridge slopes – Considered secondary stress-bearing areas.
● Cuspid eminence – Does not contribute significantly to denture support.

SYNOPSIS
● The buccal shelf is the primary stress-bearing area of the mandibular denture.
● It is covered by dense cortical bone and is oriented perpendicular to occlusal forces.
● Proper extension over the buccal shelf improves denture support and stability.

REFERENCE
Boucher’s Prosthodontic Treatment for Edentulous Patients – 13th Edition

ANSWER
Overextended posterior palatal seal

OTHER OPTIONS
● Underextended posterior palatal seal – Results in reduced retention rather than displacement during speech.
● Increased vertical dimension – Causes muscle fatigue and difficulty in speech but not posterior displacement.
● Decreased vertical dimension – Leads to overclosure and facial changes.

SYNOPSIS
● Overextension onto the movable soft palate causes denture displacement during functional movements.
● The posterior palatal seal should terminate on compressible tissue without interfering with speech.
● Proper border molding is essential for retention and stability.

REFERENCE
Zarb & Bolender’s Prosthodontic Treatment for Edentulous Patients – 13th Edition

ANSWER
Both A and B

OTHER OPTIONS
● Presence of posterior teeth only – Not an indication for an immediate denture.

SYNOPSIS
● Immediate dentures are indicated when hopeless teeth require extraction and immediate tooth replacement is desired.
● They preserve facial appearance and improve patient confidence.
● Patients should be informed that relining or remaking may be necessary after healing.

REFERENCE
Boucher’s Prosthodontic Treatment for Edentulous Patients – 13th Edition

ANSWER
Nonsurgical root canal retreatment

OTHER OPTIONS
● Extraction – Reserved for teeth that are non-restorable or have a hopeless prognosis.
● Apicoectomy – Considered when retreatment is not feasible or has failed.
● Apexification – Indicated for immature permanent teeth with open apices.

SYNOPSIS
● Coronal leakage is a common cause of endodontic failure.
● Nonsurgical retreatment is the first-line treatment when the tooth is restorable.
● A well-sealed definitive coronal restoration is essential for long-term success.

REFERENCE
Cohen’s Pathways of the Pulp – 12th Edition

ANSWER
Mechanical complication

OTHER OPTIONS
● Not applicable

SYNOPSIS
● If implant body is stable and only crown is loose, the most common cause is abutment screw loosening (mechanical complication).
● Since implant is stable the other options doesnot apply.

REFERENCE
Misch CE. Contemporary Implant Dentistry, 3rd Edition

ANSWER
Polyether

OTHER OPTIONS
• Epoxy resin cannot be used with agar and alginate impression materials.

SYNOPSIS
• Epoxy resin is used with rubber-based impression materials like polyether, silicones, and polysulfide.
• Polyether impression is the best choice of material.
• The hydrophobic characteristics of silicone impression materials make them suitable for pouring of epoxy resin to produce dies.
• However, polysulphides are dimensionally unstable, hence it is not preferred.

REFERENCE
Philips Science of Dental Materials, 12th Ed, Pg 161

ANSWER
D only

OTHER OPTIONS
• Bite rims – Bite rims are occlusal rims
• Custom tray – An individualized impression tray made from a cast recovered from the primary impression. It is used in making a final impression.
• Set up – The setup is the arrangement of artificial denture teeth on a denture base suitable for the mouth.

SYNOPSIS
• A temporary denture base is defined as ‘A temporary substance representing the base of a denture which is used for making maxillo-mandibular (jaw) relation record for arranging teeth.’ GPT
• Other names for temporary denture base
1. Base plate
2. Record base
3. Temporary base
4. Trial base

REFERENCE
Textbook of Prosthodontics, Nallaswamy, pg 134

ANSWER
Glutaraldehyde

OTHER OPTIONS
● Iodophor – It may stain the material and is less suitable for wax surfaces.
● Alcohol – It can dissolve or distort the wax, affecting its shape and accuracy.
● Chlorhexidine – It provides only low-level disinfection and may not be sufficient in this context.

SYNOPSIS
● Wax occlusal rims are sensitive to heat and certain chemicals.
● The disinfectant must be effective without altering the material properties.
● Glutaraldehyde provides adequate disinfection while preserving the wax structure.

REFERENCE
Anusavice – Phillips Science of Dental Materials

ANSWER
Cherubism

OTHER OPTIONS
● Central giant cell granuloma – Usually unilateral and not inherited.
● Hyperparathyroidism – Produces brown tumors but lacks characteristic facial appearance.
● Traumatic bone cyst – Usually asymptomatic and unilocular.

SYNOPSIS
● Cherubism is an autosomal dominant fibro-osseous disorder.
● It presents with bilateral mandibular enlargement during childhood.
● The condition often stabilizes or regresses after puberty.

REFERENCE
Neville’s Oral and Maxillofacial Pathology – 5th Edition

ANSWER
All of the above

OTHER OPTIONS
● Nil

SYNOPSIS
● Dentin hypersensitivity is characterized by short, sharp pain.
● Exposure of dentinal tubules occurs due to erosion, abrasion, attrition, or gingival recession.
● Diagnosis is made after excluding other causes such as caries or cracked tooth.

REFERENCE
Carranza’s Clinical Periodontology – 14th Edition

ANSWER
Take a detailed history and document findings

OTHER OPTIONS
● Inform the police – Usually done through appropriate child protection authorities when indicated.
● Take photographs – Important documentation but follows clinical assessment and consent/policy.
● Inform the parents – May not be appropriate if they are suspected perpetrators.

SYNOPSIS
● Obtain and document a complete history and clinical findings.
● Record injuries accurately using written notes and photographs when appropriate.
● Follow local child protection reporting protocols.

REFERENCE
AAPD Guideline on Oral and Dental Aspects of Child Abuse and Neglect

ANSWER
Ask her to return with her parents or legal guardian

OTHER OPTIONS
● Perform the procedure – Inappropriate without valid consent.
● Refer to another dentist – Does not resolve the consent issue.
● Ask the dental assistant to convince her – Ethically inappropriate.

SYNOPSIS
● Elective cosmetic procedures require valid informed consent.
● Minors generally require parental or legal guardian consent depending on jurisdiction.
● The dentist must always act in the patient’s best interests.

REFERENCE
ADA Principles of Ethics and Code of Professional Conduct

ANSWER
Autonomy

OTHER OPTIONS
● Veracity – Refers to truthfulness.
● Non-maleficence – Means avoiding harm.
● Justice – Refers to fairness in treatment.

SYNOPSIS
● Patient autonomy allows individuals to make informed treatment decisions.
● Dentists should present all appropriate treatment options objectively.
● Treatment should not be influenced by the dentist’s personal convenience.

REFERENCE
ADA Principles of Ethics and Code of Professional Conduct

ANSWER
Keep the originals and provide copies of all radiographs

OTHER OPTIONS
● Give all original radiographs – Originals are part of the dental record.
● Give only selected radiographs – The patient is entitled to copies of the relevant records.
● Refuse the request – Inappropriate unless legally restricted.

SYNOPSIS
● Dental records belong to the treating dentist or institution.
● Patients have the right to access copies of their records.
● Original records should be retained according to legal requirements.

REFERENCE
ADA Principles of Ethics and Code of Professional Conduct

ANSWER
Le Fort III fracture

OTHER OPTIONS
● Pyramidal (Le Fort II) fracture – Produces pyramidal separation but not craniofacial dysjunction.
● Le Fort I fracture – Horizontal fracture above the maxillary teeth.

SYNOPSIS
● Le Fort III produces complete separation of the facial skeleton from the cranial base.
● It involves the zygomatic arches and orbital walls.
● It is the most severe of the Le Fort fracture patterns.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
0.25 mg/day

OTHER OPTIONS
● 0.5 mg/day – Recommended for older children depending on age and water fluoride level.
● 1 mg/day – Recommended only for older children in low-fluoride areas.
● No fluoride supplement – Incorrect for a child at caries risk living in a low-fluoride area.

SYNOPSIS
● Children aged 6 months to 3 years living in areas with fluoride concentration below 0.3 ppm should receive 0.25 mg/day fluoride supplementation.
● Fluoride supplementation should be based on age, caries risk, and fluoride concentration in drinking water.
● Excessive fluoride intake should be avoided to prevent fluorosis.

REFERENCE
ADA Clinical Practice Guidelines for Fluoride Use

ANSWER
Class IV

OTHER OPTIONS
● Class I – Bilateral posterior edentulous areas.
● Class II – Unilateral posterior edentulous area.
● Class III – Unilateral bounded edentulous area.

SYNOPSIS
● Kennedy Class IV consists of a single anterior edentulous area crossing the midline.
● No modification spaces are permitted in Class IV.
● Classification assists in planning removable partial dentures.

REFERENCE
Stewart’s Clinical Removable Partial Prosthodontics – 5th Edition

ANSWER
6 weeks

OTHER OPTIONS
● 2 weeks – Initial healing occurs but maturation is incomplete.
● 1 month – Connective tissue healing is still ongoing.
● 2 months – Usually longer than required for routine periodontal healing.

SYNOPSIS
● Initial epithelial healing occurs within 1–2 weeks.
● Complete soft tissue healing generally requires approximately 6 weeks.
● Oral hygiene maintenance is essential during healing.

REFERENCE
Carranza’s Clinical Periodontology – 14th Edition

ANSWER
Phoenix abscess

OTHER OPTIONS
● Periapical granuloma – Usually asymptomatic chronic lesion.
● Radicular cyst – Chronic inflammatory cyst with slow progression.
● Osteomyelitis – Diffuse infection involving bone.

SYNOPSIS
● A Phoenix abscess represents acute exacerbation of a chronic periapical lesion.
● It develops when bacteria become more virulent or host resistance decreases.
● Endodontic treatment or retreatment is usually indicated.

REFERENCE
Cohen’s Pathways of the Pulp – 12th Edition

ANSWER
Extraction,Frenectomy,Diastema closure,Overjet reduction,Maxillary setback

OTHER OPTIONS
● Extraction followed immediately by diastema closure – Frenectomy should precede definitive space closure when indicated.
● Orthognathic correction before eliminating pathology – Incorrect sequence.

SYNOPSIS
● Disease control is the first priority.
● Soft tissue abnormalities should be corrected before definitive orthodontic space closure.
● Skeletal correction is performed after orthodontic preparation when indicated.

REFERENCE
Proffit’s Contemporary Orthodontics – 6th Edition

ANSWER
All of the above

OTHER OPTIONS
● Nil

SYNOPSIS
● Lip bumpers eliminate excessive lip pressure.
● They can increase arch length and relieve mild crowding.
● They may also distalize mandibular molars and reinforce anchorage.

REFERENCE
Proffit’s Contemporary Orthodontics – 6th Edition

ANSWER
All of the above

OTHER OPTIONS
● Nil

SYNOPSIS
● Functional appliances modify jaw growth during active growth.
● They are most effective during the pubertal growth spurt.
● Appliance selection depends on patient compliance and treatment objectives.

REFERENCE
Proffit’s Contemporary Orthodontics – 6th Edition

ANSWER
Mechanical habit-breaking appliance

OTHER OPTIONS
● Physiological observation – Appropriate only in younger children with self-limiting habits.
● Reminder therapy – Appropriate as an initial approach but has already failed.
● T-Guard – A removable reminder appliance but generally less effective than fixed habit-breaking appliances after failed behavior modification.

SYNOPSIS
● Persistent thumb sucking beyond 6–7 years requires intervention.
● Behavioral therapy is the first-line treatment.
● Fixed mechanical habit-breaking appliances are indicated when reminder therapy fails.

REFERENCE
McDonald & Avery’s Dentistry for the Child and Adolescent – 11th Edition

ANSWER
All of the above

OTHER OPTIONS
● Nil

SYNOPSIS
● The cul-de-sac (buccal advancement) flap provides excellent access and soft tissue mobilization.
● It is indicated for closure of oroantral communications and membrane repair.
● It is also used during sinus augmentation procedures when additional access is required.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
GIC

OTHER OPTIONS
● Mineral trioxide aggregate (MTA) – Primarily used for endodontic procedures.
● Zinc oxide eugenol – Temporary restorative material with poor wear resistance.
● Amalgam – Poor esthetics and limited adhesion to root surfaces.

SYNOPSIS
● GIC chemically bonds to dentin and cementum.
● It releases fluoride, reducing recurrent caries.
● It performs well in cervical and root surface lesions where moisture control is challenging.

REFERENCE
Sturdevant’s Art and Science of Operative Dentistry – 7th Edition

ANSWER
Both A and B

OTHER OPTIONS
● Nil

SYNOPSIS
● Ultrasonic tips are the preferred initial method for instrument retrieval.
● Microforceps assist in removing exposed fragments under magnification.
● Operating microscopes significantly improve retrieval success.

REFERENCE
Cohen’s Pathways of the Pulp – 12th Edition

ANSWER
Apical third

OTHER OPTIONS
● Coronal third – Has the poorest prognosis because of greater mobility and pulpal complications.
● Middle third – Has an intermediate prognosis.

SYNOPSIS
● Apical third fractures usually remain stable due to minimal coronal displacement.
● Many teeth maintain pulpal vitality after apical fractures.
● Flexible splinting and regular follow-up are recommended.

REFERENCE
Andreasen’s Textbook and Color Atlas of Traumatic Dental Injuries – 5th Edition

ANSWER
Branchial cleft cyst

OTHER OPTIONS
● Thyroglossal duct cyst – Typically presents as a midline neck swelling.
● Ranula – Occurs in the floor of the mouth.
● Submandibular sialadenitis – Presents with painful salivary gland swelling.

SYNOPSIS
● Branchial cleft cysts usually occur along the anterior border of the sternocleidomastoid muscle.
● They arise from remnants of the second branchial arch.
● Surgical excision is the treatment of choice.

REFERENCE
Neville’s Oral and Maxillofacial Pathology – 5th Edition

ANSWER
Vazirani-Akinosi technique

OTHER OPTIONS
● Conventional technique – Requires adequate mouth opening.
● Gow-Gates technique – Also requires wide mouth opening.

SYNOPSIS
● Vazirani-Akinosi is a closed-mouth mandibular block.
● It is indicated in patients with trismus.
● It anesthetizes the inferior alveolar, lingual, and frequently the mylohyoid nerves.

REFERENCE
Handbook of Local Anesthesia – Stanley F. Malamed – 7th Edition

ANSWER
Carbamazepine

OTHER OPTIONS
● Sulfonamides – No role in neuropathic facial pain.
● NSAIDs – Usually ineffective because trigeminal neuralgia is neuropathic.

SYNOPSIS
● Carbamazepine is the first-line drug for classical trigeminal neuralgia.
● Oxcarbazepine is an accepted alternative.
● Surgical management is considered for refractory cases.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Abandon the extraction and stabilize the tuberosity; surgically remove the tooth later if required

OTHER OPTIONS
● Separate the tuberosity from the tooth – May produce a large bony defect and oroantral communication.
● Stabilize and continue forceful extraction – Risks further fracture and sinus complications.

SYNOPSIS
● Large tuberosity fractures should be preserved whenever possible.
● The fractured segment should be repositioned and stabilized for healing.
● Surgical extraction can be performed after adequate healing if necessary.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Class II

OTHER OPTIONS
● Class I – Bilateral distal extension edentulous areas.
● Class III – A bounded edentulous space with teeth both anterior and posterior.
● Class IV – A single anterior edentulous area crossing the midline.

SYNOPSIS
● Kennedy Class II consists of a unilateral distal extension edentulous area.
● It is a tooth–tissue supported removable partial denture.
● Proper classification assists in designing support, retention, and indirect retention.

REFERENCE
Stewart’s Clinical Removable Partial Prosthodontics – 5th Edition

ANSWER
Gracey curette

OTHER OPTIONS
● Sickle scaler – Used primarily for supragingival calculus removal and has a pointed tip.
● Universal curette – Has two cutting edges and can be used throughout the mouth.
● Gates-Glidden drill – Used for coronal flaring during root canal treatment.

SYNOPSIS
● Gracey curettes are area-specific periodontal instruments.
● They have one cutting edge and a rounded back and toe.
● They are primarily used for subgingival scaling and root planing.

REFERENCE
Carranza’s Clinical Periodontology – 14th Edition

ANSWER
Dentigerous Cyst

OTHER OPTIONS
● Odontogenic keratocyst (OKC) – Usually surrounds part of the crown or extends beyond the CEJ and tends to grow in the anteroposterior direction with minimal buccolingual expansion.
● Unicystic ameloblastoma – May mimic a dentigerous cyst radiographically but usually requires histopathological confirmation.
● Radicular cyst – Associated with the apex of a non-vital tooth rather than the crown of an impacted tooth.

SYNOPSIS
• Dentigerous cysts are the second most common type of odontogenic cyst, which is a fluid-filled sac that develops in the jaw bone and soft tissue.
• They form over the top of an unerupted tooth, or partially erupted tooth, usually one of your molars or canines.
• While dentigerous cysts are benign, they can lead to complications, such as infection, if left untreated.
• Smaller dentigerous cysts might not cause any symptoms. However, if the cyst grows larger than 2 centimeters in diameter, you may notice swelling tooth ,sensitivity,tooth displacement
• If you look inside a patient’s mouth, you may also notice a small bump. If the cyst causes tooth displacement, you might also see gaps slowly forming between the teeth.
• Anyone can develop a dentigerous cyst, they’re more common in people who are in their 20s or 30s.

REFERENCE
Odontogenesis,Odontogenic Cysts and Odontogenic tumours – Cummings Otolaryngology: Head and Neck Surgery, 2021

ANSWER
Left ramus and right condyle

OTHER OPTIONS
● Right ramus and left condyle – The fracture pattern usually occurs opposite to the direction of force transmission.
● Body of mandible – Body fractures may occur with direct trauma but are less characteristic in this mechanism.
● Parasymphysis – Common in chin injuries rather than lateral cheek trauma.

SYNOPSIS
● A lateral blow to the cheek transmits force across the mandible.
● The side receiving direct impact commonly sustains a ramus fracture, while the contralateral condyle fractures because of indirect force transmission.
● Therefore, trauma to the left cheek commonly results in fracture of the left ramus and right condyle.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Fluid accumulation in paranasal sinuses

OTHER OPTIONS
● Diastatic suture – Separation of sutures may occur in facial trauma but is not usually the earliest radiographic sign.
● Overlap of bone – Indicates displacement of fractured fragments rather than the initial sign.
● All of above – Incorrect because one feature is classically considered the earliest sign.

SYNOPSIS
● In facial fractures, one of the earliest radiographic findings is fluid accumulation within the paranasal sinuses.
● This occurs due to bleeding into the sinus cavity following trauma to adjacent facial bones.
● Opacification or fluid level in the paranasal sinus is therefore considered an important early indicator of facial fracture.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
All of the above

OTHER OPTIONS
● Not applicable

SYNOPSIS
● An open bite (specifically anterior open bite) is a characteristic finding in all the mentioned conditions due to the loss of posterior vertical height or downward displacement of the maxilla.
● Le Fort II Fractures – These pyramidal fractures result in a floating maxilla, leading to posterior maxillary premature contact and a subsequent anterior open bite.
● Unilateral Condyle Fracture – Displaced subcondylar fractures cause shortening of the ramus height, creating premature contact of the molars on the affected side and a contralateral open bite.
● Bilateral Condyle Fracture: These commonly result in a symmetric anterior open bite due to bilateral shortening of the ramal height.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Splint the two parts together  

OTHER OPTIONS
● Refer Synopsis

SYNOPSIS
● The immediate management for a root fracture at the junction of the middle and cervical thirds involves splinting the two parts together.
● The coronal fragment should be repositioned as soon as possible, followed by stabilization with a flexible splint for approximately 4 months, particularly if the fracture is near the cervical third.
● The pulp vitality must be monitored for at least 1 year.
● Endodontic treatment is typically only required if the pulp becomes necrotic (usually indicated by persistent negative pulp tests or pathology), typically treating only the coronal segment initially.
● If the fracture at the cervical-middle third junction has a poor prognosis, extraction of the entire tooth is the most common definitive management, especially if there is extreme mobility or secondary infection.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition

ANSWER
Ankylosis

OTHER OPTIONS
● Calcific metamorphosis – Occurs due to pulpal response after trauma and is not prevented by the type of splint used.
● Root resorption – May occur after luxation injuries, but the primary reason for avoiding rigid splints is to reduce ankylosis risk.
● Pulp necrosis – Related to disruption of pulpal blood supply and is not prevented by flexible splinting.

SYNOPSIS
● Luxation injuries involve damage to the periodontal ligament and supporting structures.
● Current IADT guidelines recommend passive flexible splints because they permit physiological tooth movement during healing.
● Rigid splints immobilize the tooth completely and may promote fusion of the root surface to alveolar bone (ankylosis).
● Ankylosis is associated with loss of periodontal ligament space and may subsequently lead to replacement resorption.
● Therefore, flexible splinting is preferred for most luxation injuries to optimize periodontal healing and reduce the risk of ankylosis.

REFERENCE
International Association of Dental Traumatology (IADT). Guidelines for the Management of Traumatic Dental Injuries: Luxation Injuries of Permanent Teeth. Dental Traumatology. 2020;36(4):331–342.

ANSWER
6 inch 26 gauge

OTHER OPTIONS
● Not applicable

SYNOPSIS
● Stainless steel wires are commonly used for maxillomandibular fixation in mandibular fracture management.
● 26-gauge stainless steel wire of approximately 6-inch length is traditionally used for Ivy eyelet wiring and interdental fixation techniques.
● The wire is flexible enough for manipulation while providing adequate fixation.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 7th Edition.

ANSWER
Class III malocclusion

OTHER OPTIONS
Refer synopsis.

SYNOPSIS
• ANB angle indicates relative position of maxilla to mandible.
• ANB 2-4 means Skeletal Class I
• ANB greater than 4 means a class 2 tendency.
• ANB 0 or negative means a class 3 tendency.
• Since ANB is 0°, this indicates a borderline Class III skeletal pattern (mandible positioned slightly ahead of maxilla).

REFERENCE
Contemporary Orthodontics 6th Edition Page No 175.

ANSWER
Connective tissue graft

OTHER OPTIONS
• Free gingival graft – Effective for increasing keratinized tissue but less esthetic and less predictable for complete root coverage.
• Coronally advanced flap – Can be used alone for certain cases but is more effective when combined with a connective tissue graft.
• Guided tissue regeneration – Not commonly used for root coverage, more effective for treating intrabony defects.

SYNOPSIS
• Connective tissue grafting (CTG) is the gold standard for treating isolated gingival recession due to its high success rate in achieving root coverage and good esthetic results.
• It provides excellent tissue thickness and color match.

REFERENCE
Carranza 11th edition chapter 64

ANSWER
Internal root resorption

OTHER OPTIONS
Not applicable

SYNOPSIS
• Calcium hydroxide is commonly used endodontics due to its antimicrobial effect and potential to stimulate mineralized repair of pulp and periapical tissues.
• But calcium hydroxide is less used in primary teeth because it can cause chronic pulpal inflammation and internal root resorption.
• Chronic inflammation influence macrophages to fuse to form odontoblasts which starts resorption.

REFERENCE
Article on Calcium Hydroxide Induced Resorption of Deciduous teeth – Possible Explanation.

ANSWER
Sodium perborate

OTHER OPTIONS
• Not applicable

SYNOPSIS
• Sodium perborate is a stable, white powder used for internal bleaching.
• Sodium perborate alone, rather than in combination with hydrogen peroxide should be used as the primary bleaching agent.
• Sodium perborate may bleach more slowly, it is safer for the tooth.
• Sodium perborate cause less chances for cervical resorption.

REFERENCE
Grossman’s Endodontic Practise – 13th Edition Page No 510.

ANSWER
Topical steroids

OTHER OPTIONS
• Scaling – Scaling and plaque control alone cannot control desquamative gingivitis.
• Gingivoplasty and Gingivectomy – Both these methods are commonly used to treat gingival enlargment, suprabony pockets or gingival abscess.

SYNOPSIS
• Desquamative gingivitis is characterized by intense erythema, desquamation and ulceration of the free and attached gingiva.
• Etiology of most cases is lichen planus, cicatricial pemphigoid and pemphigus vulgaris.
• Treatment is usually using topical steroids.
• In some cases dermatological or internal medicine assistance might be required depending on the severity of underlying condition.

REFERENCE
Newman and Carranza’s Clinical Periodontology – 13th Edition Page No. 288

ANSWER
Erythromycin 500mg

OTHER OPTIONS
• Not applicable

SYNOPSIS
• Infective endocarditis develops if the patient has conditions like valvular heart disease, congenital heart disease, prosthetic valves, cardiomyopathy or congenital malformations.
• Dental extractions, oral prophylaxis, implant placement, biopsies, periodontal treatments, periapical endodontic treatments and any other oral procedures causing intraoral bleeding can lead to infective endocarditis in patients with cardiac issues as mentioned above.
• Amoxicillin 2g orally 1 hr before procedure is common antibiotic prophylaxis.
• If unable to take orally, ampicillin 2 g IV or IM 30 minutes before procedure is given.
• If allergic to pencillin, clindamycin 600 mg or azithromycin or clarithromycin 500 mg can be given orally.
• NB – Clindamycin (including the 600 mg dosage) is no longer preferred as a first-line antibiotic, particularly in dental and outpatient settings, primarily due to its high risk of causing Clostridioides difficile (C. difficile) infection, a serious and sometimes fatal diarrheal illness.

REFERENCE
Peterson’s Principles of Oral and Maxillofacial Surgery – 2nd Edition Page No 24.

ANSWER
Immediate extraction because there is a chance of teeth inhalation into lungs

OTHER OPTIONS
• Not applicable

SYNOPSIS
• Natal teeth present at birth and neonatal present within 30 days of birth.
• Incidence 1–2 per 6000 births 90 percent are primary,10 percent supernumerary, 85 percent mandibular.
• Natal teeth which are present at birth should be immediately removed to prevent risk of inhalation into lungs.
• Natal teeth that are mobile should be removed immediately even if it doesn’t cause nursing difficulties.

REFERENCE
Pediatric dentistry Arthur.J.Nowak Page 207

ANSWER
Three-eight reverse cutting needle

OTHER OPTIONS
• 1/2 circle reverse cutting – For deeper or restricted areas
• Spatula needle – For delicate flap reflection near papilla
• 1/2 or 3/8 round-bodied – For friable mucosa or grafting

SYNOPSIS
• In periodontal surgery, delicate soft tissues such as gingiva and mucosa require precise, atraumatic suturing.
• Hence, reverse cutting needles are preferred because they
– Have the cutting edge on the outer convex surface, reducing the risk of tissue tearing.
– Provide better control and precision in tight surgical spaces like the oral cavity.

REFERENCE
Carranza’s Clinical Periodontology, 13th Edition

ANSWER
PMNs

OTHER OPTIONS
• Macrophages – Antigen presentation, cytokine release
• Plasma cells – Antibody production in established lesions
• Mast cells – Found mainly in gingival connective tissue, not in GCF

SYNOPSIS
• Polymorphonuclear neutrophils (PMNs) are the major cellular component of GCF.
• They play a crucial protective role by
– Phagocytosing bacteria and debris
– Releasing lysosomal enzymes
– Producing reactive oxygen species to control infection.

REFERENCE
Carranza’s Clinical Periodontology, 13th Edition

ANSWER
Ammonia

OTHER OPTIONS
• Not applicable

SYNOPSIS
• In chronic renal failure, the body’s ability to excrete urea is impaired.
• Urea accumulates in the blood and diffuses into saliva.
• In the oral cavity, urease-producing bacteria break down urea into ammonia, leading to
– Uremic odor (ammoniacal breath)
– Mucosal irritation
– Reduced salivary flow (xerostomia) due to metabolic imbalance and associated medications (diuretics, antihypertensives).
• Thus, ammonia and uremic changes are the primary causes of the dry mouth and bad breath seen in renal failure patients.

REFERENCE
Carranza’s Clinical Periodontology, 13th Edition

ANSWER
Cold response

OTHER OPTIONS
● Sweet – May give response if marginal leakage or exposed dentin is present, but not the most reliable normal pulp vitality test.
● Hot – Less reliable, normal teeth may not respond distinctly unless inflamed.
● No response – Suggests non-vital pulp, not expected in a tooth with a healthy pulp under a conservative amalgam restoration.

SYNOPSIS
● A tooth with a conservative amalgam restoration usually has a vital pulp.
● Cold test is the most reliable method to assess pulp vitality in such cases.
● A normal response is a brief, non-lingering pain indicating healthy pulp status.

REFERENCE
Ingle JI, Bakland LK, Baumgartner JC. Ingle’s Endodontics, 7th ed.