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Dentistry > Sharpening and Scaler Care > Flashcards

Sharpening and Scaler Care Flashcards

1
Q

What is best practice?

A

To sharpen each instrument after cleaning and disinfecting and before every use

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2
Q

Sterilization reduces what?

A

The risks of cross-infection among patients and from patients to staff members

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3
Q

How do you tell if an instrument is sharp?

A

The two planes come together at a precise angle

Visual inspection and sharpening sticks

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4
Q

What method was used to check for sharpness, but for reasons of hygiene, it is no longer recommended?

A

The “fingernail”

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5
Q

When performing a visual inspection, all that is needed is a bright light and a sharp eye. The instrument is held and rotated toward the light source. What does it look like when it is dull?

A

The edges are rounded and it reflects light

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6
Q

When performing a visual inspection, all that is needed is a bright light and a sharp eye. The instrument is held and rotated toward the light source. What does it look like when it is sharp?

A

The edge does not reflect light

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7
Q

What is a sharpening stick?

A

An acrylic or plastic rod or a syringe casing may be used

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8
Q

When using a sharpening stick, how do you tell if a blade is dull?

A

It will glide over the surface without catching it

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9
Q

When using a sharpening stick, how do you tell if a blade is sharp?

A

A sharp blade easily catches as the instrument is drawn against the surface of the sharpening stick

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10
Q

What are the stones used for sharpening?

A

The Arkansas stone
The India stone
The ceramic stone
The conical stone

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11
Q

The Arkansas stone is used for what?

A

The final sharpening of an instrument that is already close to the sharpness

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12
Q

What is the India stone used for?

A

“Coarse” sharpening of an overly dull instrument or for changing the plane of one or more of the sides of the instrument

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13
Q

Sharpening with the Inida stone is followed by the use of what?

A

The Arkansas stone

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14
Q

Both the Arkansas and India stone require what to be effective?

A

Oil

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15
Q

What may be used for fine sharpening?

A

The ceramic stone

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16
Q

What is generally used with ceramic stones instead of oil?

A

Water

17
Q

What is considered a round Arkansas stone?

A

A conical stone

18
Q

What is a conical stone used for?

A

To provide a final sharpening to the instrument by working on its face

19
Q

What is one technique to sharpen an instrument with a flat stone?

A

To hold the instrument motionless and move the stone

20
Q

What is a second method used to sharpen an instrument with a flat stone?

A

To move the instrument against a stationary stone

21
Q

What is the first step in sharpening an instrument?

A

To hold it firmly against the edge of a table, with the tip facing the operator

22
Q

Where is the conical stone rolled over?

A

The face of the instrument

23
Q

Overuse of this technique does what to the instruments?

A

Shortens the life of the instrument

24
Q

Where does the strength of the instrument lie?

A

The direction from the face of the instrument to the back of the instrument

25
Q

If the face is removed, the instrument becomes what?

A

Weaker

26
Q

What are the advantages of sharpening with a flat stone?

A

The strength of the instrument is maintained even as the sides of the instrument become worn

27
Q

Thininng of the sides with the flat stone makes the instrument better suited for what?

A

Subgingival work

28
Q

Conical stones can be used to sharpen what?

A

Dental elevators when the manufacturer has sharpened the elevator from the concave side

29
Q

What is a unit used to simplify sharpening?

A

The Rx Honing Machine

30
Q

What does the Rx Honing Machine consist of?

A 
Diamond disk
Carbide disk
Round hone 
U-shaped hone 
Perio & scissors guide
31
Q

What is the diamond disk used for?

A

To sharpen extremely dull instruments

32
Q

What is a carbide disk used for?

A

To maintain an edge with the removal of a minimal amount of metal

33
Q

What is a round hone used for?

A

To sharpen explorers and spoons

34
Q

What is a U-shaped hone used for?

A

To round off the edge of curettes and keep them sharp

35
Q

What is used to establish the angle at which the instruments should be sharpened?

A

Perio & Scissors Guide

Dentistry (65 decks)

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