MCQs in Oral & Maxillofacial Surgery

Chapter 4: Maxillofacial trauma

 

1- Maxillary sinus is usually involved in fractures:

  1. Le fort 1.
  2. Zygomatic arch fracture.
  3. Le fort 3.
  4. Nasoethmiodal fracture.
  5. Symphysis fracture.

 

 

 

 

 

The answer is: A

 

2- Which of the following complication may result from injury to auriculotemporal nerve during removal of parotid tumor is:

  1. Facial palsy.
  2. Gustatory sweating.
  3. Oro lingual paraesthesia.
  4. Anorexia.
  5. Deafness.

 

 

 

 

 

The answer is: B

 

3- Which of the following method of sterilization is ineffective:

  1. Ethylene oxide gas.
  2. Gamma radiation.
  3. UV radiation.
  4. Autoclaving.
  5. Hot air oven.

 

 

 

 

The answer is: C

 

4- If a fracture of jaw bone is communicated to external environment, it is called:

  1. Comminuted fracture.
  2. Compound fracture.
  3. Green stick fracture.
  4. Simple fracture.
  5. Transverse fracture.

 

 

 

 

 

The answer is: B

 

5-Le fort 3 fracture is also called:

  1. Horizontal fracture.
  2. Pyramidal fracture.
  3. Transverse fracture.
  4. Simple fracture.
  5. Green stick fracture.

 

 

 

 

The answer is: C

 

6- In Bilateral Parasymphyseal fractures of the mandible the fractured segment is displaced posteriorly under the influence of:

 

  1. Anterior belly of digastric, mylohyoid and geniohyoid
  2. Masseter, medial pterygoid and Lateral pterygoid
  3. Buccinator, anterior and posterior belly of Digastric
  4. Genioglossus, geniohyoid and Posterior belly of Digastric

 

 

 

 

 

The answer is: D

 

7- In Lingual splaying with Guardsman fracture with ORIF, which is the clinical feature seen:

 

  1. Increased intracanthal distance
  2. Increased interpupillary distance
  3. Increases Gonion Gnathion distance
  4. Increased interangular distance

 

 

 

 

 

The answer is: D

 

8- In condylar fracture with greater than 5mm overlapping and greater than 37 degrees angulation with fracture segment, what is the line of treatment:

 

  1. Closed reduction and IMF
  2. Open reduction and IMF
  3. Soft Diet and follow up
  4. No treatment required

 

 

 

 

 

The answer is: B

 

9- The treatment of choice in comminuted fracture of mandible is:

 

  1. 5 mm plate
  2. 5 mm plate
  3. Dynamic compression plate with eccentric holes
  4. Reconstruction plates with central holes

 

 

 

 

 

The answer is: D

 

10- When a minimal injury as a glancing blow is struck, what variable should be considered:

 

  1. Position of strike
  2. Area of strike
  3. Angulation of strike
  4. Location of strike

 

 

 

 

 

The answer is: C

11- In condylar fracture and bone plate synthesis to counteract the dynamic tension and compression zones, the most acceptable place for plating is:

 

  1. One plate fixed laterally in neck of condyle
  2. One plate in anterior and One plate in posterior border of mandible
  3. One plate on posterior border only
  4. One plate on Anterior border only

 

 

 

 

 

 

The answer is: B

 

 

12- Maximum complications seen in which of the following fractures:

  1. Body fracture
  2. Angle fracture
  3. Condylar fracture
  4. Symphyseal fracture

 

 

 

 

 

The answer is: C

 

13- Transverse symphyseal fracture of mandible can be managed by all of the following EXCEPT:

  1. Lag screws
  2. 2mm compression plates
  3. 5mm compression plates
  4. 5mm single miniplate

 

 

 

 

 

The answer is: D

 

14- In fracture of Atrophic mandible with bone loss, what is the best treatment modality:

  1. Bone grafting and load bearing
  2. Bone grafting and load sharing
  3. Semi rigid fixation
  4. IMF with open reduction

 

 

 

 

 

The answer is: A

 

15- All of the following types of fracture can involve a wall of the maxillary sinus EXCEPT:

  1. Orbital blow out fracture
  2. Le Fort II
  3. Le Fort I
  4. Intracapsular condylar fracture

 

 

 

 

 

The answer is: D