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Dentistry > Hand instruments > Flashcards

Hand instruments Flashcards

1
Q

What are the four specific parts that most dental instruments have?

A

Handle
Shank
Terminal shank
Working end

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2
Q

What are the types of handles?

A

Round
Tapered
Hexagonal

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3
Q

What joins the working end of the instrument with the handle?

A

The shank

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4
Q

What determines the teeth that the instrument will be able to access?

A

The length and curvature of the shank

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5
Q

What is the part of the shank that is closest to the working end?

A

The terminal shank

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6
Q

What is the portion of the instrument that comes in contact with the tooth?

A

The working end

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7
Q

What two instruments are grouped together because they are usually manufactured as double-ended instruments but are actually two different types of instruments?

A

Explorers and periodontal probes

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8
Q

Explorers are used to detect what?

A

Plaque and calculus
Explore cavities
Check for exposed pulp chambers

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9
Q

What feature of the explorer increases the operator’s tactile sensitivity?

A

The design

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10
Q

What is the most commonly found explorer?

A

The shepherd’s hook or crook

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11
Q

What instrument is the shepherd’s hook manufactured in combination with?

A

Periodontal probe

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12
Q

What part of the pigtail explorer allows the operator to use the tip of the instrument and thereby avoid touching with the side of the instruments those parts of the tooth that are not being explored?

A

The curved shape

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13
Q

Pigtail explorers usually come as what, allowing for a greater range of exploration?

A

Hooked to the right on one end and to the left on the other

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14
Q

How does the pigtail explorer function?

A

By gliding along the tooth surface in search of irregularities and magnifies the user’s tactile sense

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15
Q

What are the three major notches on the notched periodontal probe?

A

5, 10, and 15 mm

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16
Q

There are intermediate notches on the notched probe, which notches are skipped?

A

4, 9 and 14

17
Q

Periodontal probes are available in 18 mm lengths. What does each band represent?

A

3 mm

18
Q

What allow for quick removal of large pieces of calculus?

A

The calculus removal forceps

19
Q

The calculus removal forcep has tips of different lengths and shapes. Which is placed over the crown and which is placed over the calculus?

A

The longer tip is placed over the crown

The shorter tip is placed under the calculus

20
Q

When using the calculus removal forceps, the technician or practitioner must be careful not to damage what?

A

The enamel surface or the gingiva

21
Q

Describe the sides of the scalers?

A

Three sharp sides and a sharp tip

22
Q

Scalers are particularly useful in removing what?

A

Calculus from narrow but deep fissures such as those located on the buccal surface of the fourth premolar

23
Q

Scalers are used for what only?

A

Supragingival scaling

24
Q

Can scalers damage the gingiva and periodontal ligament?

A

Yes

25
Q

What are the three parts of the scaler?

A

The tip
The face (flat side)
The cutting edge

26
Q

What must the scaler be if it is to be effective?

A

Sharpened regularly

27
Q

What is the most commonly used scaler?

A

The sickle scaler

28
Q

What is the fine scaler, used for extremely small teeth, known as?

A

Morris 0-00

29
Q

What instrument has two sharp sides and a round toe?

A

Curettes

30
Q

What are curettes used for?

A

To remove calculus both supragingivally and subgingivally

31
Q

How are curettes designed?

A

So that each end is a mirror image of the opposite end

32
Q

What are the two types of curettes?

A

The universal curette

Area-specific curette

33
Q

Which curette can be adapted to almost all dental surfaces?

A

The universal curette

34
Q

Which curette is adaptable to different areas of the mouth?

A

The area-specific curette

Example: Gracey curette

35
Q

What is a general rule followed when using curettes?

A

The higher the number of the instrument, the farther back in the mouth it is used

36
Q

The point of the curette is called what and what does it look like?

A

The Toe

Rounded

37
Q

Sterilization reduces what?

A

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

Dentistry (65 decks)

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