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Clinical Dental Hygiene Exam Two > Chapter 39 > Flashcards

Chapter 39 Flashcards

1
Q

What are the examination instruments?

A

probe and explorer

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2
Q

What are the treatment instruments?

A

curets and scalers

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3
Q

What are the three parts of an instrument?

A

working end, shank, and handle

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4
Q

Refers to the part used to carry out the purpose and function of the instrument

A

working end

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5
Q

What is the working end of a scaler or curet?

A

blade

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6
Q

What are the parts of a sharp blade on?

A

cutting edge and lateral surfaces

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7
Q

A very fine line where two surfaces meet. Example- the face and lateral surfaces meet to form the sharp cutting edge of a curet

A

Cutting edge

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8
Q

The ________ meet or are continuous to form the back of an instrument

A

lateral surfaces

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9
Q

The ______ connects the working end with the handle.

A

shank

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10
Q

Shape and rigidity of the shank determines what?

A

access of the working end to accomplish the intended purpose for which the instrument is designed

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11
Q

Section of the shank adjacent to the blade. It is sometimes elongated to give better access to deeper pockets.

A

lower or terminal shank

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12
Q

A heavier shank is _______ and is able to withstand greater pressure without flexing. ( these are needed for heavier calculus removal)

A

STRONGER

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13
Q

Less rigid and more flexible shanks provide what?

A

more tactile sensitivity and are used to remove fine deposites.

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14
Q

How many working ends to single-ended instruments have?

A

ONE

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15
Q

How many working ends do double ended instruments have?

A

May have paired or complimentary working ends. Pairing working ends are used for access to proximal surfaces from the facial or lingual or palatal aspects.

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16
Q

Separate from the shank and working end. They permit instrument exchanges and replacements.

A

cone socket

17
Q

The ideal instrument for comfort and the best tactile sensitivity has handle with a ______ diameter?

A

3/8 or 5/16

18
Q

For control and comfort without muscle fatigue, what type of handle should be avoided?

A

smooth handle

19
Q

What are the instrument features/ fabrication materials of the working end?

A
  1. Metal : stainless or carbon steel
  2. Diamond : work by means of abrasion, used with little or no pressure
  3. Non metal: plastic, nylon ( used to dental implants)
20
Q

What are the fabrication materials of the handle of an instrument?

A
  1. metal - stainless steel

2. nonmetal-resin, nylon

21
Q

What are the types on curets?

A

universal and area-specific

22
Q

What are the categories of scalers?

A
  • curved scaler/sickle
  • straight/jacquette
  • file scaler
  • hoe scaler
  • chisel scaler
23
Q

What kind of blade does the general curet have?

A

one or two cutting edges on a curved blade

24
Q

What are the cutting edges like on a general curet?

A

curve around to meet at the toe

25
Q

What does the face of the general curet look like in the cross section?

A

flat

26
Q

The back or undersurface of a general curet is _________.

A

Rounded

27
Q

What is the cross section of the blade shape like in a general curet?

A

half circle

28
Q

In a general curet, what is the shank for the anterior teeth like?

A

Shank, blade, and handles may be in a relatively flat plane

29
Q

In a general curet, what is the shank for the posterior teeth like?

A

The shank is contra-angled for access to proximal surfaces

30
Q

What type of curet can be adapted for instrumentation on any tooth surface?

A

universal

31
Q

What is the working ends of a universal curet like?

A

paired mirror-image, usually placed on a single handle

32
Q

What is the face like in a universal curet?

A

perpendicular to the lower shank

33
Q

What is the cutting edge like in a universal curet?

A

continuous around the face; used on both sides and around the toe

Clinical Dental Hygiene Exam Two (1 decks)

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