Afghanistan Dental Exit Exam (AMC Government Exit Exam — Stomatology) Feed

Question

A 28-year-old male presents with severe pain and throbbing in the lower right quadrant 3 days following the uncomplicated extraction of tooth #46 (mandibular right first molar). On examination, the extraction socket is empty, devoid of a healthy blood clot, and the alveolar bone walls are exposed and exquisitely tender to gentle probing. There is noticeable halitosis, but no fever, lymphadenopathy, or facial swelling. What is the most appropriate initial management?

Oral And Maxillofacial Surgery

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Question

During the surgical extraction of an impacted mandibular third molar (#38), the surgeon prepares a full-thickness mucoperiosteal flap. Which anatomical structure is at greatest risk of permanent sensory deficit if a vertical releasing incision is mistakenly placed lingual to the retromolar pad?

Oral And Maxillofacial Surgery

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Question

A 42-year-old female experiences acute onset of lightheadedness, generalized urticaria, bilateral wheezing, severe dyspnea, and hypotension (blood pressure 75/40 mmHg) 5 minutes after local infiltration of 2% lidocaine with 1:100,000 epinephrine. What is the immediate first-line medication and route of administration?

Oral And Maxillofacial Surgery

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A practitioner plans to administer local anesthesia to a 60 kg healthy adult male. What is the maximum recommended dose (MRD) of 2% lidocaine with 1:100,000 epinephrine in milligrams and the approximate maximum number of standard 1.8 mL dental cartridges?

Oral And Maxillofacial Surgery

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Question

A 35-year-old male presents with a rapidly expanding, firm, brawny swelling involving the bilateral submandibular, sublingual, and submental spaces. He exhibits elevated tongue position, severe dysphagia, drooling, muffled voice ('hot potato' voice), and mild stridor. What is the diagnosis and the primary immediate clinical priority?

Oral And Maxillofacial Surgery

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Question

During the extraction of a deeply carious maxillary first molar (#16), the palatal root fractures at the apical third. While attempting to retrieve the root tip with an elevator using apical force, the fragment suddenly disappears into the maxillary sinus. A 3 mm perforation of the sinus floor is confirmed. What is the most appropriate management protocol?

Oral And Maxillofacial Surgery

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Question

A patient cannot achieve adequate pulpal anesthesia in a mandibular first molar with irreversible pulpitis despite two standard inferior alveolar nerve blocks (IANB) using 2% lidocaine with 1:100,000 epinephrine. Which high mandibular nerve block technique is most reliable for targeting the mandibular nerve trunk at the neck of the condyle prior to its branching?

Oral And Maxillofacial Surgery

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Question

A 24-year-old male presents to the emergency clinic unable to close his mouth following a wide yawn. Clinical examination reveals an anterior open bite, prominent projection of the chin, bilateral preauricular depressions, and severe muscle spasm in the masseter and temporalis regions. What is the classical manual reduction technique for this acute anterior TMJ dislocation?

Oral And Maxillofacial Surgery

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Question

Which local anesthetic agent is metabolized predominantly in the blood plasma by nonspecific butyrylcholinesterase (pseudocholinesterase) rather than exclusively in the liver, making it an amide with ester-like metabolic clearance and superior bone penetration?

Oral And Maxillofacial Surgery

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Question

A 52-year-old male with a history of mechanical prosthetic mitral valve replacement takes warfarin daily (current INR = 2.4). He requires extraction of a single non-restorable premolar tooth. According to current evidence-based surgical guidelines, what is the most appropriate perioperative anticoagulant management?

Oral And Maxillofacial Surgery

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Question

Which classification system categorizes impacted mandibular third molars based on the depth of the impaction relative to the occlusal plane of the adjacent second molar as Class A, Class B, and Class C?

Oral And Maxillofacial Surgery

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Question

A 19-year-old male is struck in the midface during an altercation. Clinical examination demonstrates bilateral periorbital ecchymosis ('raccoon eyes'), subconjunctival hemorrhage, cerebrospinal fluid (CSF) rhinorrhea, step-off deformities at the frontonasal suture and infraorbital margins, and mobility of the entire middle third of the facial skeleton on grasping the maxilla. What type of Le Fort fracture does this represent?

Oral And Maxillofacial Surgery

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Question

Which surgical elevator utilizes the mechanical principle of a wheel and axle to luxate and deliver mandibular molar roots from their sockets?

Oral And Maxillofacial Surgery

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Question

A 65-year-old female presents with severe chest pain described as heavy, squeezing pressure behind the sternum that started while climbing stairs. She is conscious and oriented, with blood pressure 140/90 mmHg and pulse 84 bpm. What is the immediate pharmacological intervention of choice in the dental office?

Oral And Maxillofacial Surgery

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Question

A 48-year-old male with a history of stage IV prostate cancer metastatic to bone has been receiving monthly intravenous zoledronic acid infusions for 2 years. He requires extraction of a severely fractured, non-restorable mandibular molar. What major complication is this patient at substantial risk of developing, and what is the primary diagnostic criterion?

Oral And Maxillofacial Surgery

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Question

During the surgical exposure of an impacted maxillary canine, the surgeon must design a full-thickness flap. Which principle of surgical flap design is critical to prevent ischemic necrosis of the flap margins?

Oral And Maxillofacial Surgery

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Question

A 22-year-old female presents for routine operative dentistry. Immediately after the administration of 1.8 mL of 2% lidocaine with 1:100,000 epinephrine, she becomes pale, diaphoretic, dizzy, and temporarily loses consciousness for 15 seconds. Her pulse is 48 bpm and blood pressure is 80/50 mmHg. What is the diagnosis and the most effective immediate position for recovery?

Oral And Maxillofacial Surgery

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Question

A 30-year-old construction worker sustained trauma to the left mandible. Panoramic radiograph confirms a non-displaced fracture running from the mandibular angle through the third molar socket. The line of fracture runs from the alveolar margin inferiorly and posteriorly to the angle. How is this fracture classified in terms of muscle action?

Oral And Maxillofacial Surgery

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Question

Which specific fascial space infection carries the greatest direct risk of spreading rapidly into the posterior mediastinum through the 'danger space' (Space 4) of the neck?

Oral And Maxillofacial Surgery

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Question

A 38-year-old female presents with severe facial lacerations and a severed right parotid duct (Stensen's duct) following a motor vehicle collision. Which cranial nerve branch travels in close anatomical proximity along the superficial surface of the masseter muscle and is most vulnerable to concurrent laceration?

Oral And Maxillofacial Surgery

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Question

In complete denture prosthodontics, which anatomical structure in the maxillary arch provides the primary stress-bearing area capable of resisting vertical masticatory loads without significant bone resorption?