Prosthodontics #9 – Unidontia

1. Arcon articulator

CE and CG in lower and upper member respectively

CE and CG both in in lower member

CE and CG in upper and lower respectively

Condylar element (CE) and condylar guidance (CG) in upper member only

Question 1 of 20

2. The path of insertion for an anterior 3/4 crown should:

be the parallel to the tooth cervical one -third of the labial surface rather than the long axis of

be perpendicular to the incisal one-half of the labial surface rather than the long axis of the tooth

be parallel to the incisal one-half to two-thirds of the labial surface rather than the long axis of the tooth

be parallel to the long axis of the tooth

Question 2 of 20

3. During implant placement in the posterior maxillary area, the apex of the implant may engage the maxillary sinus floor. This will lead to:

decrease implant stability

infection

over countersink

increase implant stability

Question 3 of 20

4. in partial denture design, the major connector should

act as a stress-breaker.

not interfere with lateral forces.

dissipate vertical forces.

rigidly connect the bilateral components.

Question 4 of 20

5. facebow is used to transfer

frankfort horizontal plane

axis orbital plane

occlusal plane

camper's plane

Question 5 of 20

6. In an edentulous maxilla, the direction of resorption of the alveolar ridge is

uniform in all directions.

upward only.

upward and facially.

upward and palatally.

Question 6 of 20

7. In patients wearing complete dentures, the most frequent cause of tooth contact (clicking) during speaking is

nervous tension.

incorrect centric relation position.

lack of vertical overlap.

excessive occlusal vertical dimension.

Question 7 of 20

8. Correction made in natural dentition for correction of deflective occlusal contacts so as to improve delivery of forces to underlying structure is called:

Physiologic occlusion

Corrected occlusion

Balanced occlusion

Therapeutic occlusion

Question 8 of 20

9. Pontic most commonly used for anterior teeth

Ovate

Ridge lap

stein pontic

Modified ridge lap

Question 9 of 20

10. minimum occlusal clearance on centric cusp for cast metal is

1.5 mm

2 mm

0.5 mm

1 mm

Question 10 of 20

11. The property involved when a denture base clasp is adjusted is

Proportional limit

Hardness

Percentage elongation

Elastic limit

Question 11 of 20

12. Lateral ligament of TMJ?

Stylomandibular

Sphenomandibular

Temporomandibular

Discal

Question 12 of 20

13. Which of the following will increase the flexibility of a removable partial denture clasp arm?

Increasing the length.

Increasing the diameter.

Decreasing the retentive undercut.

Decreasing the taper.

Question 13 of 20

14. All of the following are indications for electrosurgery except

to remove hyperplastic gingival tissue where it has proliferated into preparations or over crown margins

in place of a gingival retraction cord where substantial attached gingiva is present

where attached gingival tissues are thin, or where an underlying dehiscence is suspected

for crown-lengthening procedures prior to fabricating a provisional crown

Question 14 of 20

15. flexibility of the clasp arm is

More for cast clasp compared to wrought clasp

directly proportional to the clasp diameter

Inversely proportional to the diameter of the clasp

inversely proportional to the length of the clasp

Question 15 of 20

16. Maximum permissible convergence of long axis of tilted abutments for giving a fixed partial denture

15 to 20

10 to 15

25 to 30

20 to 25

Question 16 of 20

17. Recommended probing force around implant gingival sulcus is

0.45N

0.25 N

0.15N

0.35N

Question 17 of 20

18. Dental compression syndrome is

Increase in VD, causes compression of teeth

Increased occlusion forces causes compression of TMJ

Decrease in VD, causes compression of teeth

Implant causes compression of nerve

Question 18 of 20

19. wrong statement about gingival Zenith

has to shift medially in case of midline diastema closure

always distal to the midline of the tooth

important role in smile designing

it is the most important point of the gingival tissues along the long axis of the tooth

Question 19 of 20

20. The ideal crown-to-root ratio of a tooth to be utilized as a bridge abutment is:

2;1

1;1

3;1

1;2

Question 20 of 20