Insturments Flashcards

1
Q

How do we remove unsupported enamel?

A

with thin rotary instrument of hand instrument

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2
Q

What bur do we use for class II composite preparation?

A
small round 
or 
elongated pear bur 
or 
diamond
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3
Q

Which bur do we use for pinhole insertion?

A

¼ round bur or a pear shaped, held perpendicular to the pin

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4
Q

What bur do we use for class I composite preparation?

A

small round
or
elongated pear bur (for 90 degree cavosurface margins)

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5
Q

What bur do we use for retention grooves?

A

small round bur

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6
Q

What bur do we use for retention grooves on class V composite preparation?

A

small round bur

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7
Q

How to remove Hard Dentin?

A

a bur
or
a sharp cutting instrument

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8
Q

How is Soft Dentin excavated?

A

with hand and rotary instrumentation

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9
Q

Can we remove Firm Dentin with hand excavation?

A

resistant to hand excavation

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10
Q

How is Leathery Dentin excavated?

A

hand instruments without much pressure

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11
Q

How do you enter a class I, OL preparation?

A
cross cut fissure
or
small round
or 
inverted cone bur
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12
Q

Which # of bur to use for class I?

A

245

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13
Q

Which # of bur to use for class II?

A

245

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14
Q

What tool do we use to break enamel to expose the proximal box?

A

spoon excavator

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15
Q

What do we use to remove remaining proximal enamel after exposing box?

exam**

A

Hand instruments
Small dimension burs
End cutting burs

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16
Q

What burs for occlusal punch cut?

A

Inverted cone
cross cut fissure
round

17
Q

You would use a dental explorer to:

a. Examine for root caries.
b. Check a prepared tooth for smoothness and
retention grooves and points.
c. Check for pit and fissure caries.
d. Check for smooth surface caries.

A

a. Examine for root caries

b. Check a prepared tooth for smoothness and
retention grooves and points

d. Check for smooth surface caries

18
Q

How do you assess dentin hardness?

a. With the use of a dental explorer.
b. With the use of a spoon excavator.
c. With a bur on a low speed handpiece.
d. With a bur on a high speed handpiece.

A

a. With the use of a dental explorer

b. With the use of a spoon excavator

19
Q

What do we use for AMG carving?

A
  • small discoid cleoid
  • 1/2 holllenback carver
  • small spoon excavator
20
Q

What do we use for AMG precarve burnishing?

A

burnisher w/ heavy strokes

21
Q

What do we use for AMG condensation?

A

amaglam condensing instruments: condensers or pluggers

22
Q

What do we use for AMG postcarve burnishing?

A

w/ burnisher: PK3 or thomas or acorn burnisher

23
Q

What do we use for finishing?

A

finishing burs and finishing discs