endodontics and perio

Question 1

Reactionary dentin

Answer 1

reaction to minor damage

Question 2

chance of necrosis with closed apices

Answer 2

96%,80%,65%,6%,25%

Question 3

CAL formula for recession

Answer 3

PPD+ recession

Question 4

chemical name of dilantin drug

cyclosporine

Answer 4

phenytoin(sodium channel blocker)

calcineurin inhibitor

Question 5

Chronic Periodontitis

Answer 5

• Clinically not healthy
• Slower, progressive bone
  destruction
• Microbial deposits
  consistent with extent of
  destruction
• Modified by systemic
  issue

Question 6

Supragingival
microorganism

Answer 6

aerobic
– Tooth= G+
– Outer surface of plaque= G-

Question 7

Subgingival

Answer 7

anaerobic
– Tooth= G+ coronal and G- apical
– Epithelium= G-ve

Question 8

stages of dental plaque formation

Answer 8

pellicle formation
adhesion and attachment of bacteria
colonization and maturation of plaque

Question 9

red complex

Answer 9

P. gingivalis
– T. denticola
– T. forsythia

Question 10

orange complex

Answer 10

Fusobacterium
– Prevotella intermedia
– Campylobacter rectus

Question 11

antiinflammatory mediators

Answer 11

IL-4
* IL-10
* TIMPs

Question 12

proinflammatory mediators

Answer 12

IL-1= bone resorption
* IL-6
* PGE2
* TNFa= macrophage activation
* MMPs= collagen destruction

Question 13

stages of gingivitis

Answer 13

inital lesion
early lesion
established
advanced

Question 14

Piezoelectric ultrasonics vibrate in a—-pattern

Answer 14

linear

Question 15

scaling and root planing angulation is

Answer 15

45-90 degree

Question 16

Positive architecture

Answer 16

interproximal
bone is coronal to radicular bone,

Question 17

Regeneration

Answer 17

completely restore architecture
and function

Question 18

Repair

Answer 18

not completely restore architecture and
function, involving healing by scar or formation of
long JE

Question 19

Reattachment

Answer 19

reunion of epithelial and
connective tissue with root surface after incision
or injury

Question 20

New attachment

Answer 20

embedding of new PDL fibers
into new cementum that has been previously
deprived of its original attachment

Question 21

1 and 2-wall defects

Answer 21

resection

Question 22

3 and 4-wall defects

Answer 22

regeneration

Question 23

Gracey 1-2 and 3-4
– Gracey 5-6
– Gracey 7-8 and 9-10
– Gracey 11-12
– Gracey 13-14

Answer 23

anterior
anterior and premolars
posterior, facial and lingual
posterior, mesial
posterior, distal

Question 24

Histologic Zones of Pulp

Answer 24

• Predentin
• Odontoblastic layer
• Cell-free zone of Weil
• Cell-rich zone
• Pulp core

Question 25

SS hand file

Answer 25

.02 taper

Question 26

size of file 15 at D0 is

Answer 26

0.15

Question 27

poor fit

Answer 27

more efficiency, less fracture

Question 28

<24 hours

Answer 28

DPC

Question 29

> = 24 hours

Answer 29

Cvek

Question 30

> =72 hours

Answer 30

PPTY