Instruments

Question 1

Classifications of instruments (6)

Answer 1

Cutting, 
Condensing, 
Plastic, 
Finishing and Polishing, 
Isolation,
Miscellaneous

Question 2

Metals in hand cutting instruments (3)

Answer 2

1. Carbon steel
2. Stainless steel
3. Carbide inserts
   DO NOT FLAME! - sterilizing will dull

Question 3

Carbon steel hand cutting instruments description

Answer 3

rusts easy, maintains sharp edge longer, cutting edge can break easily if sharpened improperly

Question 4

Stainless steel hand cutting instruments description

Answer 4

metal does not rust, edge dulls easily, requires constant sharpening

Question 5

Carbide inserts for hand cutting instruments description

Answer 5

hybrid of carbon steel and stainless steel blades

Question 6

What is the working end of the hand instrument called?

Answer 6

Blade or Nib
Blade - cutting edge
Nib - not a cutting instrument

Question 7

What holds the blade and the handle of the hand instrument?

Answer 7

Shank



Question 8

What part do you use to hold the hand instrument?

Answer 8

Handle/Shaft

Question 9

What is Instrument Balance?

Answer 9

allows concentration of force at the blade, prevents instrument from rotating in the fingers

Question 10

How is Instrument Balance achieved?

Answer 10

by designing the angles of the shank so cutting edge is within 2mm of long axis of the handle (otherwise the instrument will rotate)

Question 11

GV Black Classification: Instrument NAME - what are the 4 categories?

Answer 11

Order, Suborder, Class, Subclass

Question 12

What is Order?

Answer 12

purpose of the instrument (eg. excavator)

Question 13

What is Suborder?

Answer 13

position/manner of use (eg. push/pull)

Question 14

What is Class?

Answer 14

form of the working end (eg. hatchet)

Question 15

What is Subclass?

Answer 15

angles of the shank (eg. bin-angle, mon-angle)

Question 16

What is the 1st number of Numeric Instrument classification?

Answer 16

WIDTH of the blade (tenths of a mm)

Question 17

What is the 2nd number of Numeric Instrument classification?

Answer 17

ANGLE of the cutting edge

- can be omitted if it is 0

Question 18

What is the 3rd number of Numeric Instrument classification?

Answer 18

LENGTH of the blade (mm)

Question 19

What is the 4th number of Numeric Instrument classification?

Answer 19

blade ANGLE