Prosthodontics #2 – Unidontia

1. Maxillary denture is retained by a thin mm of saliva between tissue and the denture. What is this force called?

Surface adherence

Force of Adhesion

Force of Cohesion

lnterfacial tension

Question 1 of 20

2. Anterior guidance not present in all,except

Class 3 in which mandibular anterior are ahead of maxillary canine

Anterior open bite

Posterior open bite

Anterior class II with excessive overjet

Question 2 of 20

3. 3- months post- implantation, the type of bone that can be found on the surface of a Ti implant is

mixture (woven and lamellar bone)

mature woven bone

immature woven bone

complete lamellar bone

Question 3 of 20

4. Complication of implant where there is inflammation and loss of tissue around implant

Acute implant failure

Peri implant mucositis

Chronic periodontitis

Periimplantitis

Question 4 of 20

5. on closing a denture patient produces a click sound while doing functional movements.the cause may be

horizontal displacement of mandibular denture

tightly fitting maxillary denture

reduced interocclusal space

newly rebased denture

Question 5 of 20

6. it is better to reduce any occlusal deformities in the existing dentition before the fabrication of a FPD as

to maintain a more accurate anatomical occlusal surface in the new restoration

to decrease the amount of adjustment required at the post insertion phase

to prevent the duplication of the deflective occlusal contact in the new restoration

to prevent trauma to rest of the dentition

Question 6 of 20

7. palatopharyngeal Incompetence is

defined as inadequate length of soft and hard palate with normal physiologic movement of remaining tissues

defined as having altered anatomy but ineffective or absent motor function

defined as having normal anatomy but ineffective or absent motor function

defined as inadequate length of soft and hard palate with normal physiologic function

Question 7 of 20

8. the amount of reduction required for a tooth for all metal crown restoration is

so that there is proper clearance between the teeth

so that the tooth architecture interfere with the arc of rotation

so that the tooth architechture dosent interfere with arch of rotation

at least 2 m on all the surfaces

Question 8 of 20

9. Which of the following impression materials is NOT recommended for making a final impression for fabrication of dies for a porcelain fused to metal crown

Condensation silicone.

Irreversible hydrocolloid.

Polyether

Addition silicone.

Question 9 of 20

10. CEREC AC which is true?

Creates the image by video recording

Composite metal resin alloy etc

LED is used

Laser beam is used

Question 10 of 20

11. Not a sibilant sound

Question 11 of 20

12. Increase in columella philtrum angle is seen due to:

Implant supported hybrid denture

Morphologic change seen in edentulous patient

Characteristic of geriatric patients

Resorption of bony ridges

Question 12 of 20

13. Heel-raising movement ofRPD is prevented by?

Indirect retainer

Direct Retainer

Minor connector

Occlusal rests

Question 13 of 20

14. The distobuccal border of the maxillary denture is formed by

Pterygomaxillary notch

Coronoid process

maxillary tuberosity

Vestibular depth

Question 14 of 20

15. Permissive splint gives

Group function in both CR and eccentric movements

Group function in CR and canine guided in eccentric movements

Uniform contact of all teeth in all position

Uniform contact in CRM canine guided in lateral excursions

Question 15 of 20

16. Butt joint means

<90 degree angle

<45 degree angle

90 degrees

>90 degree angle

Question 16 of 20

17. Absolute contraindication for implant placement?

Leukemia

Osteoporosis

Ischemic heart disease

Kidney failure

Question 17 of 20

18. Kennedy applegate classification of partially edentulous arch does not allow consideration of

Length of the edentulous spaces

Differentiation between tooth borne and tooth tissue supported

Visualization

Universal acceptance

Question 18 of 20

19. When designing a removable partial denture, changing the tilt of the cast on the surveyor alters the

the position of the survey line on the cast.

path of insertion of the planned removable partial denture.

the undercut and non-undercut areas.

the direction of forces applied to the partial denture.

Question 19 of 20

20. The best way to protect the abutments of a Class I removable partial denture from the negative effects of the additional load applied to them is by

keeping a light occlusion on the distal extensions.

placing distal rests on distal abutments.

using cast clasps on distal abutments.

regular relining of the distal extensions.

Question 20 of 20