I- mcq (30 Questions)

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311 MDS Final Written Examination

MCQ and Short Notes

Time Allowed 2 hours (9-11 AM)

Saturday, May 27, 2006

I- MCQ (30 Questions)

1. The goal of the surgical treatment of an odontogenic infection is:

  1. Establishment of a differential diagnosis.

  2. Drainage of accumulated Pus and Necrotic debris.

  3. Taking an incisional biopsy.

  4. Removal of the Cause.

  5. All of the above.

  6. a and c.

  7. b and d.

2. The straight elevator should be grasped in the fingers and forced down the periodontal membrane at an angle of ___________degrees to the long axis of the root.

  1. 15

  2. 60

  3. 45

  4. 90

3. No: ________________ is the most commonly used scalpel blade in oral surgical procedures

  1. 10

  2. 11

  3. 15

  4. 18

4. Side effects of NSAIDs include the following

  1. Bronchospasm

  2. Tinnitus

  3. Gastrointestinal disturbances

  4. All of the above

5. The following statement is true regarding Reye's syndrome

  1. It is a rare disorder occurring in adulthood

  2. It can be due to ibuprofen

  3. It involves fatty degeneration of the viscera

  4. It has no associated encephalopathic illness

6. One of the following is not an indication for the use of antibiotics in odontogenic infections:

a) Chronic well-localized abscess.

b) Compromised host defense.

c) Fascial space involvement.

d) Osteomyelitis.

e) None of the above.

7. Aspiration of a golden yellow fluid which will coagulate on standing, suggests:

a) inflammatory odontogenic cyst.

b) Keratocyst.

c) traumatic (solitary) bone cyst.

d) dermoid cyst.

e) all of the above.

f) non of the above.

8. Crepitation and egg-shell crackling could be a sign of:
a) large cystic lesions.

b) malignant tumors.

c) benign tumors.

d) all of the above.

e) non of the above.

f) a and c.

9. The base of the surgical flap should be the__________ portion to maintain proper circulation.

  1. Narrowest

  2. Widest

  3. Longest

  4. Smallest

10. High speed contra-angle handpieces are not used for cutting bone as they can cause _________ in an open surgical flap.

  1. Surgical emphysema

  2. Hematoma

  3. Infection

  4. Massive bleeding

11. The lateral rectus muscle of the eye is supplied by

  1. Trochlear nerve

  2. Abducent nerve

  3. Ocluomotor nerve

  4. Facial nerve

12. Complicated mandibular fracture means

  1. Fracture involving the teeth

  2. Fracture involving vital structure

  3. Fracture with multiple pieces

  4. Fracture with communication with the external environment

13. Ill-defined borders of an intrabony lesion seen radiographically, may indicate:

a) infected cystic lesions.

b) primary malignant tumors.

c) metastatic tumors.

d) all of the above.

e) non of the above.

14. The most aggressive odontogenic cyst is:

  1. Keratocyst.

  2. Dentigerous cyst.

  3. Aneurysmal bone cyst.

  4. Residual cyst.

  5. Non of the above.

15. Arterial bleeding is ________________in nature.


  1. Bright red and spurting

  2. Dark red in color and flows steadily and heavily

  3. Bright red in color and is more of a minimal ooze

  4. Bluish red

16. ________ is a type of commonly used oral anticoagulant drug.

  1. Heparin

  2. Semarin

  3. Warfarin

  4. Serotonin

17. The following can be used in fixation of mandibular fractures

  1. Plates and screws

  2. Wires

  3. IMF

  4. All of the above

18. During use of antibiotics in treatment of odontogenic infections, one of the following guide lines is wrong:

a) Use empiric therapy routinely.

b) Use the broad-spectrum antibiotic.

c) Use the one with the lowest toxicity and side effects.

d) Use bactericidal, if possible.

19. In management of severe oro-facial infection, one of the following procedures is the most important:
a) Medical support of the patient.

b) Proper antibiotic administration.

c) Incision and drainage.

d) Maintenance of a patent airway.

20. The central unicystic ameloblastoma could be treated with:

  1. Enucleation.

  2. Resection without continuity defect (RsCD).

  3. Resection with continuity defect (RcCD).

  4. All of the above.

  5. Non of the above

21. Sings of mandibular fracture may include the following except

  1. Step deformity

  2. Sublingual hematoma

  3. Diplopia

  4. Swelling

22. Hess chart can be used to assess

  1. Diplopia

  2. Visual acuity

  3. Enophthalmus

  4. Exophtahlmus

23. The role of chemotherapy in oral cancer treatment is:

a) curative.

b) palliative.

c) prophylactic.

d) all of the above.

e) non of the above.

24. Etiology of oroantral communication include the following

  1. Excessive extraction force

  2. Trauma

  3. Chronic infection

  4. All of the above

25. Water's view is an occipitomental radiograph taken at

  1. 10 degrees

  2. 15 degrees

  3. 20 degrees

  4. 30 degrees

26. Signs and symptoms of tumor of the maxillary sinus may include the following

  1. Loose teeth

  2. Bone destruction

  3. Eye problems

  4. All of the above

27. The surgery as a primary modality for treatment of oral cancer should be:

a) conservative.

b) associated with radical neck dissection.

c) aggressive.

d) palliative.

e) all of the above.

f) a and d.

g) b and c.

28. The midface include the following except

  1. Palatine bone

  2. Lacrimal bone

  3. Nasal bone

  4. Temporal bone

29. The ostium of the maxillary sinus opens into

  1. The superior meatus

  2. The middle meatus

  3. The inferior meatus

  4. Non of the above

30. Caldwell Luc approaches is performed through

  1. Temporal area

  2. Canine fossa

  3. Third molar region

  4. Non of the above

II- Short Notes (15 Questions)

1. What is the name and contents of the local anaesthesia that you used in the clinic and how many cc in each cartridge?


2. Write two different prescriptions of antibiotics you will give to the patient if he has dental infection.


3. What steps you will do before extracting a tooth to a diabetic patient?


4. Write two different prescriptions of a pain medication.


5. The material from which dental implant is made of is ____________

6. Mention a few indications for carrying out Trans-alveolar Extractions.




7. The differential diagnosis of a lateral neck swelling may include:





8. Mention the types of few suturing techniques used in oral surgery.





9. Postoperative hemorrhage may be one of the following types:




10. List four drugs that can be used in treatment of anaphylactic shock




11. List four procedures which can be done to maintain patency of the airway





12. List four radiographs that can be used to help in the diagnosis of mandibular fractures





13. The clinical signs and symptoms of an oral cancer may include the following:





14. Stage IV oral cancer means:


15. The differential diagnosis of a soft to firm swelling of the floor of the mouth of 20 years old adult patient may include the following:





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