Periodontics Revision #3

1. Reattachment procedures

Reduce pocket depth by establishing a long epithelium attachment

Reduce pocket depth by establishing reattachment of connective tissue fibers

Should not be used where aesthetics are a prime consideration

Decrease the width of attached gingiva

Question 1 of 20

2. Resective osseous surgery is best suited for periodontal sites with

severe intrabony defects.

severe attachment loss.

early to moderate bone loss.

teeth with short roots.

Question 2 of 20

3. Indications for crown lengthening include the following except:

Crown fracture

Delayed passive eruption

Furcation involvement

Esthetics

Question 3 of 20

4. Shallow crater formations, class I and early classII furcations, and thick osseous ledges may be treated almost entirely by

flattening interproximal bone

vertical grooving

only A and B

radicular blending

Question 4 of 20

5. acetone odour is diagnostic of

gastrointestinal disorder

diabetes mellitus

none of the above

pneumonia

Question 5 of 20

6. Which is the least critical zone of instrumentation during periodontal pocket elimination surgery?

Bone in pocket area

Tooth surface

Root surface

Pocket tissue wall

Question 6 of 20

7. Principle of diathermy used for resection of small nodular lesions is

Electrosection

Electrodessication

Electrofulguration

Electrocogulation

Question 7 of 20

8. Anti Bone-Resorption factor is

Cytokines

Leukotrienes

Bisphosphonates

Prostaglandin

Question 8 of 20

9. after periodontal surgery the recommended method for removing plaque and gingival massage is

bass

modified stillman

charters

none of the above

Question 9 of 20

10. Integration between blade vent implant and bone is

Fibro-osseous integration

Fibrocartilaginous

Osseo-integration

Osseo vent integration

Question 10 of 20

11. Coronal cementum is

All of the above

Deposited by connective tissue cells

Forms due to rapid dissolution of the REE

A thin layer of cementum deposited on the enamel

Question 11 of 20

12. Which of the following is available in the form of encapsulated microsphere:

Minocycline

Metronidazole

Tetracycline

Doxycycline

Question 12 of 20

13. proximal surface of the tooth can be polished by

dental tape

bristle brushes

rubber cups

airpowder polishing

Question 13 of 20

14. All of the following are disadvantages of gingivectomy by electrosurgery except

Unpleasant odour

Irrepairable bone damage

Uncontrolled haemorrhage

Poorly shielded cardiac pacemakers

Question 14 of 20

15. Concept of full mouth disinfection was given by

Socransky

Lindhe

Quirynen

Kornmon

Question 15 of 20

16. Chlorhexidine is an effective antiplaque agent due to its ability to

non-selectively reduce the oral microbial flora.

damage the microbial cell membrane.

bind to the positively charged pellicle.

neutralize the bacterial end-products such as lactic acid.

Question 16 of 20

17. In an electro section surgery, current waveform used is:

Partially rectified and non-damped

Fully rectified and damped

Partially rectified and damped

Fully rectified and non-damped

Question 17 of 20

18. an epidemiological index with a true biological gradient is

periodontal index-Ramfjord

PMA index-Schour and maseler

periodontal index-russel

simplified oral hygiene index-green and vermilion

Question 18 of 20

19. Modes of attachment of calculus to the tooth surface include all of the following, EXCEPT

Penetration of calculus bacteria into cementum

Close adaptation to unaltered cementum

Attachment by means of an inorganic pellicle

Mechanical locking into surface irregularities

Question 19 of 20

20. Which of the following organisms is associated with juvenile Periodontitis

B.forsythus

S.sanguis

A.acetemcomitans

Prevotella

Question 20 of 20