Perio scaling and root planing

Question 1

Scalers –

Answer 1

triangular flat surface with 2 cutting edges that converge in a sharply pointed tip •

Question 2

Universal curettes –

Answer 2

spoon-shaped flat surface with 2 cutting edges and a rounded tip •

Question 3

Specific (gracey curettes) –

Answer 3

spoon-shaped curved surface with a cutting edges and a rounded tip •

Question 4

Files (not in instrumentation kit) –

Answer 4

series of blades on a base •

Question 5

Power-Driven –

Answer 5

tips that vibrate and use cavitation

Question 6

Scalers not to be used on

Answer 6

root surfaces (will gouge)

Question 7

Scalers are effective near

Answer 7

contact areas

Question 8

Scaling strokes

Answer 8

open rake angle
short overlapping strokes
firm lateral pressure

Question 9

Curette angle

Answer 9

80 degrees

Question 10

Curette obtuse angulation causes

Answer 10

cratering of surface

Question 11

Curette acute angulation causes

Answer 11

burnishing of surface

Question 12

Initial Root planing strokes

Answer 12

vert, oblique, horizontal (coloring in)

Question 13

Final root planing strokes

Answer 13

Longer strokes, lighter force, 80 deg angle

Question 14

Anterior curette, mesial of premolars

Answer 14

3/4 Gracey

Question 15

15/16 (or 11/12) curette

Answer 15

Mesial and radicular (buccal or lingual?) of posteriors

Question 16

Distal surface of all posteriors curette

Answer 16

13/14 gracey

Question 17

Gracey curettes are

Answer 17

offset by 20 deg (70 instead of 90)

Question 18

Ultrasonic strokes are

Answer 18

oblique - for punching through calculuis ledges

Question 19

Root planing decreases —, increases —

Answer 19

PD, Alveolar bone attachment