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Patient Care III > Periodontal instrumentation (final review) > Flashcards

Periodontal instrumentation (final review) Flashcards

1
Q

Seating position for surfaces towards:

A

8:-9:00

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2
Q

Seating position for surfaces away:

A

11-12:00

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3
Q

What is the seating position exception?

A

Maxillary anterior facial may be completely done at 11-12:00

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4
Q

Anterior sickle scaler should only be used:

A

supragingivally

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5
Q

How should shank/handle of an anterior sickle scaler be held?

A

parallel to long axis of tooth

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6
Q

Describe the stroke used with an anterior sickle scaler?

A

short & overlapping strokes

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7
Q

Where should you begin on the tooth when using an anterior sickle scaler:

A

Begin at midline and into interproximal

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8
Q

Describe the instrument design of an anterior sickle scaler:

A

-straight rigid shank
-two cutting edges on each working end
-pointed tip (hence “sickle”)

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9
Q

The anterior sickle scaler tip is _____ in cross section

A

triangular

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10
Q

What portion of the anterior sickle scaler is used for calculus removal?

A

terminal 1/3 (tip)

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11
Q

When adapting the anterior sickle scaler, the shank & handle should be:

A

parallel to the long axis of the tooth

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12
Q

What is the proper angulation (cutting edge against the tooth) for an anterior sickle scaler?

A

45-90 degrees

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13
Q

Overangulation (greater than 90 degrees) of an anterior sickle scaler will result in:

A

burnished calculus and/or tissue laceration

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14
Q

Underangulation (less than 45 degrees) of an anterior sickle scaler will result in:

A

burnished calculus

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15
Q

Light grasp, minimal pressure stroke (similar to perio explorer)- when using an anterior sickle scaler is called:

A

Exploratory stroke

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16
Q

When using an anterior sickle scaler, the act of tightening the grasp and applying lateral pressure to the tooth on the coronal stroke is called:

A

working stroke

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17
Q

What is the difference in design between the anterior & posterior sickle scaler?

A

Posterior sickle scaler has a complex shank (additional bend)

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18
Q

Where can a posterior sickle scaler be used?

A

Posterior teeth, supragingival interproximal areas (may go SLIGHT subgingival)

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19
Q

How should the terminal shank be held of a posterior sickle scaler?

A

parallel to long axis of tooth

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20
Q

Describe the stroke used with a posterior sickle scaler:

A

short & overlapping strokes

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21
Q

Where should you begin on the tooth when using a posterior sickle scaler?

A

Begin at line angle & work interproximal (no buccal or lingual surface)

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22
Q

What is the purpose of a periodontal explorer?

A

detection of subgingival calculus

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23
Q

Describe the working strokes of a periodontal explorer:

A

short, walking, overlapping strokes

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24
Q

The terminal shank of the periodontal explorer should be:

A

held parallel to long axis of tooth

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25
Q

Where on an anterior tooth should you begin when using a periodontal explorer?

A

Midline

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26
Q

When using a periodontal explorer-

In anterior _____ is parallel to long axis of tooth

In posterior ____ is held parallel to long axis of tooth

A

handle

terminal shank

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27
Q

In what situation would you FLIP a periodontal explorer?

A

in anterior

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28
Q

In what situation would OFFSET a periodontal explorer?

A

in posterior

29
Q

Where on a posterior tooth should you begin when using a periodontal explorer?

A

start at distal line angle and work interproximal

30
Q

Describe the instrument design of a universal curette:

A

two cutting edges, rounded toe

31
Q

What is the cross-sectional shape of a universal curette?

A

pacman shape

32
Q

Where can universal curettes be used?

A

All surfaces of all teeth (supra&subgingivally)

33
Q

Give examples of different universal curettes:

A

Columbia 13/14
McCall’s 17/18
4R/4L

34
Q

The 4R/4L universal curette is used for:

A

deep pockets

35
Q

The Columbia 13/14 & mcCalls 17/18 universal curettes are used on:

A

shallow pockets

36
Q

How can you be sure the correct working end is being utilized when using a universal curette?

A

Terminal shank is parallel to long axis of tooth (when inserted interproximally)

37
Q

The ideal instrument stroke for universal curette:

A

Oblique & overlapping

38
Q

When using a universal curette on anterior teeth, where do you begin?

A

begin at midline, scale into interproximal space

39
Q

What is parallel to the long axis of the tooth when using a universal curette on anterior tooth?

A

Handle

40
Q

When using a universal curette on posterior teeth, what is parallel to the long axis of the tooth?

A

terminal shank

41
Q

In the anterior region, a universal curette should be:

A

Flipped

42
Q

In the posterior region, a universal curette should be:

A

offset

43
Q

Describe the instrument design of area specific curettes:

A

-one cutting edge
-rounded toe
-straight & complex shanks

44
Q

What should an area specific curette be used for?

A

deep periodontal pockets, due to their ability to adapt to root anatomy

45
Q

What instrument should be used for subgingival debridement with pockets greater than 5mm?

A

area-specific curette

46
Q

What instruments have a face?

A

area-specific curette

47
Q

In a gracey curette the face is tilted ____ relative to the terminal shank

A

70 degrees

48
Q

The gracey 1/2 is used on ____ surfaces of ____ teeth

A

all surfaces of anterior teeth

49
Q

The gracey 11/12 is used on ____ surfaces of ____ teeth

A

facial, lingual & mesial surfaces of posterior teeth

50
Q

The gracey 13/14 is used on ____ surface of ____ teeth

A

distal surfaces of posterior teeth

51
Q

For both the gracey 11/12 & 13/14 the ____ is parallel to the long axis of tooth

A

terminal shank

52
Q

For the gracey 1/2 the ____ should be held parallel to the long axis of the tooth

A

handle

53
Q

What type of shank design is seen with the gracey 1/2?

A

simple

54
Q

Where do begin on the tooth when using a gracey 1/2?

A

begin at midline and scale interproximally, then flip

55
Q

The gracey 11/12 and gracey 13/14 are known as:

A

complimentary instruments

56
Q

The part of the shank that allows for the working end to be adapted to the tooth surface; begins below the working end & extends to the last bend in the shank, nearest the handle:

A

Functional shank

57
Q

The portion of the functional shank nearest to the working-end:

A

terminal shank

58
Q

The function of an instrument is determined primarily by:

A

design of the working end

59
Q

Important for maintaining contact of working end & tooth structure during instrumentation:

A

Adaptation

60
Q

Important for efficient plaque & calculus removal:

A

Activation

61
Q

Refers to the angle between the face of a bladed instrument & the tooth surface:

A

Angulation

62
Q

Probing inaccuracy is related to:

A
  1. probe design
  2. pressure applied
  3. contour of tooth
63
Q

Base of pocket to gingival margin:

A

probing depth (PD)

64
Q

CEJ to base of pocket:

A

attachment level

65
Q

CEJ to gingival margin (GM):

A

recession

66
Q

If the measurement for the gingival margin is + :

A

recession is present

67
Q

If the measurement for the gingival margin is - :

A

The gingival margin is coronal to the CEJ (no recession)

68
Q

Calculate attachment loss given the following measurements:

PD= 5 mm
GM= -3 mm

A

CAL = 2 mm

(5) + (-3) = 2 mm

Patient Care III (19 decks)

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