Mod 1

Question 1

what are the 3 objectives of sharpening

Answer 1

-restore cutting edge
-preserve original shape
conserve blade material

Question 2

what are 3 reasons we should sharpen

Answer 2

less fatigue
easier and more effectively remove calc
increased patient comfort

Question 3

less fatigue

Answer 3

• less pressure on finger rest

- less force

Question 4

increased patient comfort

Answer 4

• fewer strokes
  -less force0
  decreased tissue trauma
  less chance of slipping

Question 5

how many strokes cause a rounded edge?
significant rounding of edge?
roughly how many patients is this

Answer 5

15
45
1-2 patients

Question 6

what are some problems with sharpening

Answer 6

difficult to maintain same angle and orig contour

hard to calibrate between operators

Question 7

when do we sharpen

Answer 7

first sign of dullness
before pt is seated
during appt
before sterilization

Question 8

what is the shape of the blade in a curet?

scaler?

Answer 8

half circle

triangular

Question 9

what is the angle to the terminal shank of a universal curet?
area specific?
scaler?

Answer 9

90
70
90

Question 10

what kind of toe does a curet have? scaler?

Answer 10

rounded

pointed tip

Question 11

what edge is sharpened on a area specifice curette

Answer 11

the lower edge

Question 12

what are 2 ways to determine sharpness

Answer 12

visually (light), manually

Question 13

What are the kinds of sharpening stones and when are they used

Answer 13

fine- routine sharpening
medium- light recontouring
coarse- excessively dull instruments

Question 14

when should you use oil when sharpening

Answer 14

if you are going to sterilize stone and instruments after use

Question 15

when should mechanical sharpeners be used

Answer 15

with sterile instruments

Question 16

what are 3 types of sharpening techniques

Answer 16

freehanded
guided
mechanical

Question 17

what is the freehanded technique

Answer 17

moving the stone or the instrument

Question 18

what is the guided technique

Answer 18

gleason, premier, discus, horse

Question 19

what is the mechanical technique

Answer 19

periostar
sidekick
instarenew

Question 20

in the moving instrument technique what angle is the cutting edge maintained at as the instrument is pulle

Answer 20

110

Question 21

in the moving stone technique how should you hold the instrument face

Answer 21

parallel to the floor

Question 22

what angle is made with the stone in the moving stone

Answer 22

100-110

Question 23

what can a hygienist do to prevent dulling of instruments

Answer 23

• routine sharpening
• use a cassette
• careful around amalgams and margins