Exam 2 CH 40 Instrument Care and Sharpening

Question 1

What are the two main objectives of instrument sharpening?

Answer 1

To preserve the original shape of the instrument.

To produce a sharp cutting edge.

Question 2

When do you sharpen an instrument?

Answer 2

At first sign of dullness during an appointment.

Question 3

What are the tests for instrument sharpness?

Answer 3

Visual or glare test

Plastic testing stick

Question 4

What are some ways to tell if the instrument is dull?

Answer 4

• The dull cutting edge will present a rounded shiny surface that reflects lights.
• Using the plastic stick, the dull cutting edge will not catch without undue pressure and slides easily over the surface of the stick.

Question 5

Term; Fine-grained sharpening stone quarried from natural mineral deposits?

Answer 5

Arkansas Stone

Question 6

Term; To smooth and polish; an effect that can result when a dull scaler or curet is passed over tenacious calculus in an attempt to remove the deposit?

Answer 6

Burnish

Question 7

Term; A sharpening stone (noun)?

Answer 7

Hone

Question 8

Term; Sharpening (verb)?

Answer 8

Honing

Question 9

Term; When a scaler or curet is sharp, the cutting edge is a fine line that does not reflect light?

Answer 9

Sharpness

Question 10

Term; Plastic 1/4 inch rod, 3 inches long, used to test the sharpness of a scaler or curet?

Answer 10

Testing stick

Question 11

Term; The fine line formed where the face and lateral surfaces of a scaler or curet meet when the instrument is sharp; when the instrument is dull, the line has thickness and may even reflect light?

Answer 11

Cutting edge