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Operative Lecture > Instruments/Equiptment > Flashcards

Instruments/Equiptment Flashcards

1
Q

What are examples of cutting hand instruments?

A

excavators
chisels

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2
Q

What are examples of non-cutting hand instruments?

A

amalgam condensers
mirrors
explorers
probes

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3
Q
A

just know it I guess

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4
Q

Why is the shank of a hand instrument angled?

A

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

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5
Q

What are the different shank angles of the hand instruments?

A
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6
Q

What are some examples of bi-bevels?

A

chisels
ordinary hatchets

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7
Q

What is an example of single bevel instruments?

A

gingival margin trimmers

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8
Q

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

A

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

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9
Q

What formula number is not always included?

A

second number (cutting edge angle)

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10
Q

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

A

mirror
explorer
perio probe
spoon excavators

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11
Q

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

A

mirror

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12
Q

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

A

mirror
amalgam carriers
condensors
burnishers
carvers
articulating paper holder

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13
Q

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

A

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

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14
Q

What instruments are sometimes using in class II restorations?

A

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

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15
Q

What are cutting instruments used for?

A

sharpen line angles
place retention

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16
Q

What are spoons used for?

A

remove caries

17
Q

What do enamel hatches do?

A

cut enamel

18
Q

What are chisels used for?

A

plane walls of prep

19
Q

What are gingival margin trimmers used for?

A

bevel enamel at gingival

20
Q

What are some examples of condensing instruments?

A

amalgam condensers
composite and plastic instruments

21
Q

What are rotary instruments used for?

A

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

22
Q

What are the characteristics of carbide burs?

A

stiffer and stronger than steel
more brittle

23
Q

What are the characteristics of diamond burs?

A

higher hardness
cutting effectivness

24
Q

What are diamond burs used for?

A
  • Intracoronal and extracoronal tooth preparations
  • Bevel enamel margins
  • Enameloplasty
25
Q

What are some potential hazards with cutting instruments?

A
  • pulpal precautions (light pressure, air-water sprays, sharp burs)
  • soft tissue precautions (rubber damn, retract soft tissue with mirror/cotton role)
26
Q

How should you hold instrument?

A

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

27
Q

What can happen with dull instruments?

A

more pressure needed
more pain
less control
takes longer
reduces quality

28
Q

What can you use to sharpen hand instruments?

A
  • stationary stones
  • mechanical sharpeners
  • handpiece sharpening stones
29
Q

What is sterilization?

A

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

30
Q

What are the four acceptable methods of sterilization?

A

◦ Autoclave
◦ Dry heat
◦ Chemiclave
◦ Ethylene oxide

31
Q

What is autoclaving?

A

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

32
Q

What is dry heat?

A

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

33
Q

What is chemiclaving?

A

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

34
Q

What is ethylene oxide?

A

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

Operative Lecture (14 decks)

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