Prosthodontics #3 – Unidontia

1. Which of the following is not true about bone of posterior maxilla

Less dense bone

Larger marrow space

Thick cortex

Thinner cortex

Question 1 of 20

2. Socket stretching refers to:

fructure the buccal plate after tooth extraction to widen the socket

make second hole adjacent to the primary hole drilling within 1- 2mm

expand the socket with expander

place wide diameter implant than the socket preparation osteotomy

Question 2 of 20

3. Not a deprogramming method of mandible?

Centric relation

Tongue blades

Leaf gauges

Lucia anterior Jig

Question 3 of 20

4. 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.

the undercut and non-undercut areas.

the direction of forces applied to the partial denture.

path of insertion of the planned removable partial denture.

Question 4 of 20

5. The line drawn from the border of ala of nose to the superior border of the ear is

Willi's line

Okane's line

Frankfort's line

Campers line

Question 5 of 20

6. What can be done to increase resistance of an excessively tapered preparation

Reduce height of preparation to shorten are rotation of crown

Increase reduction at gingival margin margin to reduce taper

Add goooves along the long axis of preparation

Use a higher adhesive cement

Question 6 of 20

7. A removable partial denture is preferable to a fixed bridge when the

abutment teeth are tipped.

abutment teeth are rotated.

residual ridges are severely resorbed.

edentulous areas are large.

Question 7 of 20

8. Periodontal health of the gingival tissues is a major concern when planning any fixed prosthodontic treatment. For optimum periodontal health, restoration finish lines should be:

within the sulcus at least 1.0 mm and away from the free gingival margin without encroaching on the biologic width

terminated at the free gingival margin

supragingival whenever possible (at least 0.5 mm from the free gingival margin) to allow for hygienic cleansing

as far as possible subgingivally into the attachment apparatus

Question 8 of 20

9. The drawback of manual implant placement relative to motor placement is:

difficult to control implant placement angulation due to uncontrolled force

slow

no irrigation during implant placement

contamination from the adjacent tissue

Question 9 of 20

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

Decreasing the retentive undercut.

Increasing the diameter.

Decreasing the taper.

Increasing the length.

Question 10 of 20

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

Characteristic of geriatric patients

Resorption of bony ridges

Implant supported hybrid denture

Morphologic change seen in edentulous patient

Question 11 of 20

12. All are indications of porcelain veeners except

Hypoplastic teeth

Teeth shortened due to bruxism

Closure of midline diastema

Discoloured teeth

Question 12 of 20

13. The gingival zenith of the upper lateral incisor is located:

above central incisor and with same level of canine

below canine and central incisor

above central incisor and canine

below canine and with the same level of the central incisor

Question 13 of 20

14. The muscle of the floor of the mouth in the molar region which requires special attention in the final mandibular denture impression is the

hyoglossus

geniohyoid.

mylohyoid.

genioglossus.

Question 14 of 20

15. In metal ceramic restoration, the ceramic is bonded to metal

By chemical bond only

By mechanical bond only

Both by mechanical and chemical bonds

None of the above

Question 15 of 20

16. important diagnostic tool for achieving accurate implant angulation

waxup

mounted diagnostic cast

diagnostic template

surgical template

Question 16 of 20

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

10 to 15

15 to 20

25 to 30

20 to 25

Question 17 of 20

18. Cement used for cementing of veneers

Conventional GIC

Resin modified GIC

Zinc phosphate

Zinc polycarboxylate

Question 18 of 20

19. Purpose of transparent acrylic template in case of immediate denture

Trimming of jagged bone margins

Socket healing

Impression taking

Conditioning of socket

Question 19 of 20

20. Which of the following pontic designs is most likely to cause soft tissue irritation?

Polished porcelain.

Polished acrylic.

Glazed porcelain

Polished gold.

Question 20 of 20