Instruments/Equiptment

Question 1

What are examples of cutting hand instruments?

Answer 1

excavators
chisels

Question 2

What are examples of non-cutting hand instruments?

Answer 2

amalgam condensers
mirrors
explorers
probes

Question 3

Answer 3

just know it I guess

Question 4

Why is the shank of a hand instrument angled?

Answer 4

to allow the cutting edge of the blade to be within the projected axis of the handle

Question 5

What are the different shank angles of the hand instruments?

Answer 5

Question 6

What are some examples of bi-bevels?

Answer 6

chisels
ordinary hatchets

Question 7

What is an example of single bevel instruments?

Answer 7

gingival margin trimmers

Question 8

What are the 1, 2, 3, 4 hand instrument formulas?

Answer 8

1) width of blade
2) angle of cutting edge to instrument shaft
3) length of blade
4) angle of blade

Question 9

What formula number is not always included?

Answer 9

second number (cutting edge angle)

Question 10

What hand instruments do we actually use every time we prep?

Answer 10

mirror
explorer
perio probe
spoon excavators

Question 11

What should be in your non-dominant hand at all times?

Answer 11

mirror

Question 12

What hand instruments do we actually use every time for amalgam restorations?

Answer 12

mirror
amalgam carriers
condensors
burnishers
carvers
articulating paper holder

Question 13

What hand instruments do we actually use every time for composite restorations?

Answer 13

mirror
composite gun
condensers
burnishers
hollenback carver or optrasculpt
curing light
articualting paper holder

Question 14

What instruments are sometimes using in class II restorations?

Answer 14

shepherd’s hook explorer
matrix band
forceps
dycal instrument and spatula

Question 15

What are cutting instruments used for?

Answer 15

sharpen line angles
place retention

Question 16

What are spoons used for?

Answer 16

remove caries

Question 17

What do enamel hatches do?

Answer 17

cut enamel

Question 18

What are chisels used for?

Answer 18

plane walls of prep

Question 19

What are gingival margin trimmers used for?

Answer 19

bevel enamel at gingival

Question 20

What are some examples of condensing instruments?

Answer 20

amalgam condensers
composite and plastic instruments

Question 21

What are rotary instruments used for?

Answer 21

◦ Prepare enamel
◦ Adjust resin restorations
◦ Finish metal and resin restorations
◦ Laboratory Work
◦ Surgical Removal of Bone

Question 22

What are the characteristics of carbide burs?

Answer 22

stiffer and stronger than steel
more brittle

Question 23

What are the characteristics of diamond burs?

Answer 23

higher hardness
cutting effectivness

Question 24

What are diamond burs used for?

Answer 24

• Intracoronal and extracoronal tooth preparations
• Bevel enamel margins
• Enameloplasty

Question 25

What are some potential hazards with cutting instruments?

Answer 25

- pulpal precautions (light pressure, air-water sprays, sharp burs) - soft tissue precautions (rubber damn, retract soft tissue with mirror/cotton role)

Question 26

How should you hold instrument?

Answer 26

modified pen grasp inverted pen grasp palm-and-thumb grasp modified palm-and-thumb grasp

Question 27

What can happen with dull instruments?

Answer 27

more pressure needed more pain less control takes longer reduces quality

Question 28

What can you use to sharpen hand instruments?

Answer 28

- stationary stones - mechanical sharpeners - handpiece sharpening stones

Question 29

What is sterilization?

Answer 29

A process by which all forms of microbial life including bacteria, viruses, spores and fungi are completely destroyed

Question 30

What are the four acceptable methods of sterilization?

Answer 30

◦ Autoclave ◦ Dry heat ◦ Chemiclave ◦ Ethylene oxide

Question 31

What is autoclaving?

Answer 31

◦ Uses steam under pressure ◦ 250 °F, 15 PSI, 20 mins ◦ Shelves for cassettes

Question 32

What is dry heat?

Answer 32

◦ Oven-type sterilizer ◦ 320 °F, 60 to 120 mins

Question 33

What is chemiclaving?

Answer 33

◦ Chemical vapor pressure ◦ Uses chemical solution in a pressurized chamber ◦ 270 °F, 20 to 40 PSI, 20 mins ◦ Proper ventilation must be installed

Question 34

What is ethylene oxide?

Answer 34

◦ Several hours, below 100°C ◦ Proper ventilation must be installed