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BOARD Exam MCQs on Temporomandibular Joint (TMJ) and Maxillary Sinus – Oral & Maxillofacial Surgery

admin14 hours agoLast Updated: June 18, 2026

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Welcome to your BOARD Exam MCQs on Temporomandibular Joint (TMJ) and Maxillary Sinus

A 12-year-old child undergoes gap arthroplasty for unilateral temporomandibular joint (TMJ) ankylosis. On the first postoperative day, the surgeon emphasizes aggressive physiotherapy and jaw-opening exercises. What is the importance of early mobilization following surgery for TMJ ankylosis?

Unimportant

Indicated only when ankylosis is unilateral

Desirable

Harmful

Contraindicated for 6 weeks

None

A patient with temporomandibular joint (TMJ) ankylosis is scheduled for surgical release. The surgeon discusses various surgical approaches to access the TMJ region. Which of the following is NOT a recognized surgical approach to the TMJ?

Gillie's temporal approach

Al-Kayat and Bramley preauricular incision

Hinds' retromandibular approach

Endaural approach

Preauricular approach

None

An 8-year-old child presents with severe restriction of mouth opening and facial asymmetry. The parents report a history of facial trauma at the age of 5 years, after which progressive limitation of jaw movement developed. Clinical and radiographic examination confirm TMJ ankylosis. What is the most appropriate treatment?

Gap arthroplasty

Condyloplasty

Condylectomy

Gap arthroplasty with temporalis muscle meniscus placed in the joint space

Observation until skeletal maturity

None

An 8-year-old child with severe bilateral TMJ ankylosis is scheduled for release of ankylosis and reconstruction using a costochondral graft. Preoperative examination reveals a mouth opening of only 2 mm, making conventional laryngoscopy impossible. What is the preferred method of securing the airway?

Topical anesthesia plus sedation

Awake fibreoptic intubation

Tracheostomy

General anesthesia induction followed by oral intubation

Blind nasal intubation

None

A 10-year-old child presents with TMJ ankylosis following facial trauma several years ago. The surgeon plans treatment according to modern principles of ankylosis management, including resection of the ankylotic mass, coronoidectomy, and interpositional grafting. Which of the following procedures is NOT routinely performed in the treatment of TMJ ankylosis?

High condylar shave

Ipsilateral coronoidectomy

Contralateral coronoidectomy

Repositioning of temporalis fascia

Aggressive postoperative physiotherapy

None

A 25-year-old healthy individual undergoes a routine examination of the temporomandibular joint (TMJ). The clinician evaluates joint function and asks about symptoms during mandibular movements. Which of the following is NOT considered a normal feature of the TMJ?

Joint sound

Deviation of the mandible during eccentric movements

Pain while opening the mouth

Smooth mandibular movements

None of the above

None

A 9-year-old child develops TMJ ankylosis several years after a condylar fracture. During a discussion of the pathogenesis of ankylosis, the surgeon reviews the various theories proposed to explain bony fusion of the temporomandibular joint. Which of the following is NOT a recognized theory for the development of TMJ ankylosis?

Condylar burst theory

Calcification around the joint

Fracture segment moves backward and fuses with the zygomatic arch

Synovial fluid leaks and attracts calcium ions

Organization and ossification of intra-articular hematoma

None

A 32-year-old patient with chronic temporomandibular joint (TMJ) internal derangement undergoes arthroscopic surgery. During the procedure, dense fibrous adhesions within the superior joint space are identified and require lysis. Which laser is most commonly used during TMJ arthroscopy for adhesion lysis?

Argon laser

Er:YAG laser

He-Ne laser

Ho:YAG laser

CO₂ laser

None

A patient presents with chronic maxillary sinusitis. During endoscopic evaluation, the otolaryngologist identifies obstruction of the natural ostium responsible for drainage of the maxillary sinus. Into which nasal meatus does the maxillary sinus normally drain?

Sphenoethmoidal recess

Superior meatus

Middle meatus

Inferior meatus

Common nasal meatus

None

10.

A patient undergoes root canal treatment of a maxillary posterior tooth. During obturation, excessive filling material is extruded beyond the root apex and is later identified radiographically within the maxillary sinus. In which tooth is this complication most likely to occur?

Buccal root of maxillary first premolar

Maxillary first premolar

Maxillary first molar

Maxillary second premolar

Maxillary canine

None

11.

A 45-year-old patient undergoes extraction of a maxillary posterior tooth. Following the procedure, the patient reports passage of fluids from the mouth into the nose. Clinical examination confirms an oroantral communication, which later develops into an oroantral fistula. Extraction of which tooth is most commonly associated with this complication?

Buccal root of maxillary first premolar

Maxillary first premolar

Maxillary first molar

Maxillary second premolar

Maxillary canine

None

12.

A 40-year-old patient requires extraction of a maxillary molar. The oral surgeon explains that the roots of these teeth are often in close proximity to the maxillary sinus floor, increasing the risk of oroantral communication. In the adult, the maxillary sinus is consistently found directly superior to which group of teeth?

Incisors and canine

Premolars

Molars

Incisors

Canines only

None

13.

A 35-year-old patient develops an oroantral communication immediately following extraction of a maxillary first molar. On examination the defect is recent, there is no epithelial lining, and no evidence of chronic sinus infection. In which situation can spontaneous closure reasonably be expected?

Chronic oroantral fistula

Acute oroantral fistula

Both chronic and acute oroantral fistula

Long-standing epithelialized fistula

None of the above

None

Time's up

Test your knowledge of Temporomandibular Joint (TMJ) and Maxillary Sinus with this comprehensive collection of BOARD-style Oral and Maxillofacial Surgery MCQs. These questions are designed for FCPS, BDS, MDS, INBDE, ADC, ORE, NBDE, and other competitive dental examinations.

Topics covered include:

✔ TMJ Anatomy
✔ TMJ Movements and Biomechanics
✔ Internal Derangements of TMJ
✔ Disc Displacement Disorders
✔ TMJ Ankylosis
✔ Myofascial Pain Dysfunction Syndrome
✔ Arthrocentesis and Arthroscopy
✔ TMJ Surgical Procedures
✔ Maxillary Sinus Anatomy
✔ Sinus Floor and Tooth Relationships
✔ Oroantral Communication and Fistula
✔ Caldwell-Luc Procedure
✔ Maxillary Sinusitis of Dental Origin
✔ Sinus Lift Procedures
✔ Complications of Maxillary Sinus Surgery
✔ Odontogenic Infections Involving the Sinus

Each MCQ is presented in a BOARD Exam format with clinically relevant scenarios and evidence-based explanations to strengthen your exam preparation.

admin14 hours agoLast Updated: June 18, 2026

0 4 Less than a minute

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BOARD Exam MCQs on Temporomandibular Joint (TMJ) and Maxillary Sinus – Oral & Maxillofacial Surgery

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