Chapter 37

Question 1

Non surgical therapy aims to

Answer 1

Create environment where host can prevent recolonization w/ personal hygiene

Question 2

Calculus remains after SRP in sites with pockets deeper than

Answer 2

5mm

Question 3

Blade is made of

Answer 3

Carbon steel
Stainless steel
Tungsten carbide

Question 4

Currette shape vs sickle

Answer 4

Curette: spoon shaped, rounded toe, mirror turned blades
Sickle: Curved or straight, triangular cross section

Question 5

Hoe
Cutting edges
Blade angle
cutting edge bevel
Use

Answer 5

1 cutting edge
Blade turned 100 degrees
Cutting edge 45 degrees
Supragingival scaling

Question 6

Optimal angle of curette
Too obtuse
Too acute

Answer 6

80
Obtuse: cratering, roughening
Acute: ineffective, burnishing

Question 7

Finger rest provides

Answer 7

Fulcrom
Proper angulation
wrist-forearm motion

Question 8

Steps of curette use

Answer 8

Insert face parallel to root surface
Touch base of pocket with lower edge of blade
Turn shank parallel to tooth

Question 9

While sharpening curette, use ____ angle

Answer 9

70 degree

Question 10

Types of ultrasonic

Working frequency

Answer 10

Piezoelectric: linear
Magnetostrcitive: elliptical
25 khz

Question 11

CO2 lasers

Answer 11

Root condition
Detoxification
Bacteriocidal
NO Calc Removal

Question 12

Er YAG lasers

Answer 12

Calculus removal

Question 13

Nd YAG lasers

Answer 13

Heat generation and
Water vapor leading to
Increase pressure in calculus deposits

Question 14

Less hospitable habitat after SRP due to

Answer 14

Decrease byproducts
Decrease GCF
Neutral pH

Question 15

Pre debridement subingival micro count goes back to normal after ____

Answer 15

4-7 days

Question 16

Which bacteria are persistent

Answer 16

Pg, AA b/c can invade epithelium and CT