MCQs in Oral & Maxillofacial Surgery

Chapter 5 : Temporomandibular joint


1- Which of the following statements is correct:

  1. The articular surfaces are covered with hyaline cartilage
  2. The articular disc is composed of hyaline cartilage
  3. The middle part of the disc is not vascular area
  4. The disc attaches to the articular capsule anteriorly
  5. None of the statements is correct






The answer is: D


2- The most common complication of rheumatoid arthritis involving TMJ is:

  1. Ankylosis.
  2. Subluxation.
  3. Osteoma of condyle.
  4. Recurrent dislocation.
  5. TMJ pain dysfunction syndrome.






The answer is: A


3- Which nerve pierces between the lateral pterygoids to supply TMJ capsule:


  1. Auriculotemporal nerve
  2. Facial Nerve
  3. Massetric Nerve
  4. Auricular Nerve






The answer is: A

4- In anterior disc displacement with reduction, magnetic resonance imaging in open mouth position shows the disc in:


  1. Normal position
  2. Anterolateral position
  3. Anteromedial position
  4. Medial position






The answer is: A


5- Phase IV treatment of myofascial pain dysfunction syndrome involves the muscular injection of:


  1. Non steroidal anti inflammatory
  2. Steroid
  3. Botulinum toxin
  4. Muscle relaxant






The answer is: C


6- Ankylosis of the temporomandibular joint defined as the inability to open the mouth beyond:


  1. 5 mm
  2. 10 mm
  3. 15 mm
  4. 20 mm







The answer is: A


7- False ankylosis due to hypocalcaemia causing spasms of the muscles of mastication is caused by:


  1. Epilepsy
  2. Tetany
  3. Tetanus
  4. Drug poisoning







The answer is: B


8- Limitation of mouth opening is a distinguished clinical feature of all of the following conditions EXCEPT:


  1. True ankylosis
  2. Pseudo ankylosis
  3. Disc displacement with reduction
  4. Degenerative arthritis






The answer is: C


9- A long lasting inability to close the mouth is often associated with:


  1. TMJ dislocation
  2. Mandibular subluxation
  3. Degenerative arthritis
  4. Disc displacement without reduction






The answer is: A


10. All of the following can be seen in patients who has deviation of the mandible during opening EXCEPT:

  1. A unilateral anteriorly displaced disc
  2. Unilateral ankylosis of the condyle
  3. An occlusal interference between the retruded contact position and intercuspal position
  4. Internal derangement TMJ
  5. Unilateral fractured condyle






The answer is: C