MCQs in Prosthodontics

Chapter 1: Occlusion

 

 

 

1- Face-bow is used for:

  1. Recording of orientation relation.
  2. Recording of vertical relation.
  3. Recording of horizontal relation.
  4. Recording of all three relations.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

2- A high condylar guidance requires:

  1. Normal compensating curve.
  2. Less compensating curve.
  3. Greater compensating curve.
  4. All of the above.
  5. No compensating curve.

 

 

 

 

 

 

The answer is: C

 

3- The working side interference will found on:

  1. Lingual inclines of maxillary lingual cusps.
  2. Facial inclines of maxillary lingual cusps.
  3. Lingual inclines of facial cusps.
  4. Facial inclines of facial cusps.
  5. None of the above.

 

 

 

 

 

 

The answer is: C

 

4- The maximum intercuspation of teeth is known as:

  1. Centric relation.
  2. Centric occlusion.
  3. Protrusion.
  4. Eccentric relation.
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

5- Centric occlusion is:

  1. 1 mm anterior to centric relation.
  2. 2 mm anterior to centric relation.
  3. 3 mm anterior to centric relation.
  4. 4 mm anterior to centric relation.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

6- Gliding movements of the mandible take place in:

  1. Upper compartment of the TMJ.
  2. Lower compartment of the TMJ.
  3. Between superior surface of the condyle and inferior surface of the articular disc.
  4. Between condyle and coronoid process.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

7- The interocclusal distance is known as:

  1. Leeway space.
  2. Seeway space.
  3. Freeway space.
  4. Cobleman space.
  5. None of the above.

 

 

 

 

 

The answer is: C

 

8- Decrease in occlusal vertical dimension results in:

  1. Increased muscle tone.
  2. Decreased muscle tone.
  3. A firm appearance of the face.
  4. Decrease wrinkles of the face.
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

9- On an average, the interocclusal gap at rest position in premolar area is:

  1. 1 to 2 mm
  2. 2 to 4 mm
  3. 4 to 6 mm
  4. 6 to 8 mm
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

10- The minimum amount of protrusion for condylar guidance advancement is:

  1. 3 mm
  2. 6 mm
  3. 9 mm
  4. 12 mm
  5. None of the above

 

 

 

 

 

 

The answer is: B

 

11- High "V" shaped edentulous vault indicates:

  1. Ovoid dental arch.
  2. Tapering dental arch.
  3. Square arch.
  4. Any of the above.
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

12- The loss of vertical dimensio-n will cause the mandible to have a :

  1. More forward position in relation to the maxilla.
  2. More backward position in relation to the maxilla.
  3. The same position in relation to the maxilla as at normal OVD.
  4. Any of the above.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

13- The pattern of resorption of residual ridge in maxilla is:

  1. Downward.
  2. Upward.
  3. Downward and upward.
  4. Upward and back.
  5. None of the above.

 

 

 

 

 

 

The answer is: D

 

14- The pattern of resorption in mandible is:

  1. Downward.
  2. Upward.
  3. Downward and upward.
  4. Upward and back.
  5. None of the above.

 

 

 

 

 

The answer is: C

 

15- As the patient is aging, the resorption of the residual ridge will continue resulting in patient's profile becoming more:

  1. Straight
  2. Convex
  3. Concave
  4. Any of the above
  5. None of the above

 

 

 

 

 

The answer is: C

 

16- The lateral condylar guidance can be calculated by:

  1. L = H/6 + 12
  2. L = H/8 + 10
  3. L = H/8 + 12
  4. L = H/6 + 12
  5. None of the above.

 

 

 

 

 

The answer is: C

 

17- Centric relation is a:

  1. Bone to bone relation.
  2. Bone to teeth relation.
  3. Tooth to tooth relation.
  4. All of the above.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

18- Centric occlusion is a:

  1. Bone to bone relation.
  2. Bone to teeth relation.
  3. Tooth to tooth relation.
  4. All of the above.
  5. None of the above.

 

 

 

 

 

The answer is: C

 

 

19- The errors in occlusion should be eliminated:

  1. In the mouth of the patient.
  2. On the articulator.
  3. Without use of the articulator.
  4. By the patient himself.
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

20- The selective guiding done in the mouth of the patient according to the articulating paper marks, usually results in:

  1. Perfect balanced occlusion.
  2. Decreased amount of error in the occlusion.
  3. Increased amount of error in the occlusion.
  4. Increased retention of the denture.
  5. None of the above.

 

 

 

 

 

The answer is: B

 

21- After centric occlusion has been perfected which of the following cusps should not be shortened:

  1. Lingual cusps of maxillary and buccal cusps of mandibular teeth.
  2. Lingual cusps of maxillary and lingual cusps of mandibular teeth.
  3. Buccal cusps of maxillary and buccal cusps of mandibular teeth.
  4. Buccal cusps of maxillary and lingual cusps of mandibular teeth.
  5. None of the above.

 

 

 

 

 

The answer is: A

 

22- When carborndum paste is used for correcting errors in centric and eccentric occlusion, it will result in:

  1. Increase in OVD.
  2. Decrease in OVD.
  3. No changes to the OVD.
  4. Any of the above.
  5. None of the above.

 

 

 

 

 

The answer is: B

 

23- How many types of errors can occur on working side:

  1. 3
  2. 6
  3. 9
  4. 12
  5. None of the above.

 

 

 

 

 

 

The answer is: B

 

24- Which of the following maybe a reason for no contact of the teeth on the working side:

  1. Perfect centric relation.
  2. Perfect centric occlusion.
  3. No contact on balancing side.
  4. Excessive contact on balancing side.
  5. Any of the above.

 

 

 

 

 

 

The answer is: D

 

25- The oral muscular forces have a definitive effect, on the position of the mandible. What position will the mandible be braced during typical empty mouth swallowing:

  1. The intercuspal position
  2. The retruded contact position
  3. The protruded contact position
  4. Centric relation
  5. Eccentric relation

 

 

 

 

 

The answer is: A

 

26- An overextended disto buccal corner of a mandibular denture will push against which muscle during function:

  1. Zygomaticus
  2. Orbicularis
  3. Temporalis
  4. Masseter
  5. Buccinator

 

 

 

 

 

The answer is: D

 

27- Mandibular movement pattern of complete denture patients and those with natural teeth are:

  1. Same
  2. Mandibular movement in complete denture patients are completely different
  3. Mandibular movement is slow in complete denture patients
  4. Mandibular movement is frequent in complete denture patients
  5. Mandibular movements are irregular in complete denture patients

 

 

 

 

 

The answer is: A

 

 28- A complete denture wearer, reports to the dentist with symptoms of joint involvement, obscure pain and discomfort and clicking sounds. The dentures should be checked for:

  1. Increased vertical dimension
  2. Reduced vertical dimension
  3. Improper centric relation
  4. Overextended denture base
  5. Looseness of the dentures

 

 

 

 

 

The answer is: A