MCQs in Oral & Maxillofacial Surgery

Chapter 3: Maxillofacial infections

 

1- Which of the following statements regarding is correct cranial nerves:

  1. The trochlear  nerve supplies the superior oblique muscle
  2. The motor supply to the muscles of mastication comes from the accessory  nerve
  3. Sensation and taste to the posterior third of the tongue are supplied by the vagus nerve
  4. The motor supply to the muscles of mastication comes from the Oculomotor  nerve
  5. The lower face has bilateral facial nerve innervation

 

 

 

 

 

The answer is: A

 

2- Which of the following statements is true:

  1. The lingual nerve supplies the posterior third of the tongue
  2. The submandibular gland wraps around the posterior border of mylohyoid muscle
  3. The buccal branch of the facial nerve is at risk during removal of submandibular gland
  4. The hypoglossal nerve is seen to loop under the submandibular duct
  5. Damage to the facial nerve is inevitable during complete removal of submandibular gland

 

 

 

 

 

The answer is: B

 

3- Long term effect of radiotherapy to oral mucosa is characterized by:

  1. Epithelium becomes more keratinized.
  2. Sub mucosa becomes highly vascular.
  3. Break down & delayed healing, sub mucosa less vascular.
  4. No sub mucosal fibrosis.
  5. Epithelium becomes thin & there is rapid healing.

 

 

 

 

 

 The answer is: C

4- A patient came with history of sharp, lancinating pain on right side of face, not relieved by anaelgesics. What will be the possible diagnosis?

  1. Acute pulpitis.
  2. Trigeminal neuralgia.
  3. Acute dental abcess.
  4. Dry socket.
  5. Crack tooth syndrome.

 

 

 

 

 

The answer is: B

 

5- Common sequela after cancer chemotherapy is myelosuppression, which is characterized by:

  1. Anemia & thrombocytopenia
  2. Thrombocytosis
  3. Leukocytosis
  4. Lymphocytosis
  5. Purpura

 

 

 

 

 

The answer is: A

 

6- Inflammation of most or all of the Para nasal sinuses simultaneously is described as:

  1. Pan sinusitis.
  2. Sinusitis.
  3. Para nasal sinusitis.
  4. Para sinusitis.
  5. Sinus thrombosis.

 

 

 

 

 

 

The answer is: A

 

7- Maxillary sinus infection of odontogenic origin is most commonly caused by:

  1. Aerobic bacteria
  2. Anaerobic bacteria
  3. Fungal
  4. Viral
  5. Spirochetes

 

 

 

 

 

The answer is: B

 

8- Major duct of submandibular gland is:

  1. Bartholin’s duct.
  2. Minor salivary gland’s duct.
  3. Stenson’s duct.
  4. Wharton’s duct.
  5. Lacrimal duct.

 

 

 

 

 

The answer is: D

 

9- In WINTER’S classification, white line tells us:

  1. Depth of the impacted tooth.
  2. Angulation of the impacted tooth.
  3. Point of application for elevator.
  4. Used to classify fracture of the tooth.
  5. No such classification exists.

 

 

 

 

 

The answer is: B

 

10- Stenson’s duct opens opposite the:

  1. Upper 2nd
  2. Upper 3rd
  3. Lower 2nd
  4. Lower 3rd
  5. Upper 1s t

 

 

 

 

 

The answer is: A

 

11- A patient with persistent infections coming from his lower third molar that had spread to the tissue space marked A on the diagram is most likely to complain of which of the following:

  1. Difficulty opening the mouth
  2. Difficulty swallowing
  3. Difficulty speaking
  4. Difficulty breathing
  5. Difficulty hearing

 

 

 

 

 

 

The answer is: B

 

12- If the infection had spread to point B, What is the patient most likely to complain of?

  1. Difficulty opening the mouth
  2. Difficulty swallowing
  3. Difficulty speaking
  4. Difficulty breathing
  5. Difficulty hearing

 

 

 

 

 

The answer is: A

 

13-The least basic surgical goal for management of oral pathological lesion is:

  1. Eradication of lesion.
  2. Functional rehabilitation of pt.
  3. Aesthetic improvement.
  4. Diagnostic purpose.
  5. Study purpose.

 

 

 

 

 

The answer is: E

 

14- Geniculate Neuralgia is the uncommon neuralgia associated with:

  1. Trigeminal Nerve
  2. Facial Nerve
  3. Optic Nerve
  4. Vagus Nerve

 

 

 

 

 

The answer is: B

 

 

15- Confirmation of existence of oro-antral fistula can be done by:

  1. Transillumination
  2. Periapical radiograph
  3. Nose blow test
  4. Water's view

 

 

 

 

 

The answer is: C

 

16- If an oro-antral fistula is small and the sinus is disease free, the best approach for treatment would be:

 

  1. Buccal advancement flap
  2. Palatal transposition flap
  3. Establish a blood clot in the extraction site
  4. Pedicle flap

 

 

 

 

The answer is: C

 

17. Which of the following statements is correct regarding ranula?

  1. Surgical removal of a ranula may alter taste sensation
  2. A ranula is a mucous extravasation cyst of the sublingual gland
  3. Surgical removal of a ranula may cause temporary paresthesia to the lingual nerve
  4. A ranula that spreads into the submasseteric space is called a plunging ranula
  5. Removal of the entire affected salivary gland is necessary to avoid recurrence

 

 

 

 

 

 

The answer is: B