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DMD2 sem 2 > Prac quiz questions > Flashcards

Prac quiz questions Flashcards

1
Q

What are the types of motion activation?

A

Wrist activation (Doorknob like - more powerful, less fatigue, more often used for calculus removal with hand instruments)

Digital activation (Used more often for ultrasonic scaling and not recommended for calculus removal with hand instruments)

Digital activation

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2
Q

What is the purpose of a hand pivot?

A

Line angles maintain adaptation as working end moves around the tooth

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3
Q

What are the parts of the instrument?

A

Handle

Shank

Working end

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4
Q

What are the differences between a simple and complex shank?

A

Working end direction being faced:

Simple (used for anteriors) = straight

Complex (used for posteriors) =
Side to side for mesial and distal root surfaces.
Front-back bend reaches facial/lingual root surfaces

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5
Q

What is the role of the functional shank?

A

Allows working end to be adapted to the tooth surface

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6
Q

What is the role of the terminal shank?

A

Portion of the functional shank nearest to the working end

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7
Q

What does the use of the instrument for sub or supra gingival purposes depend on?

A

Shank length

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8
Q

What are the parts of the working end?

A

Face

Back

Lateral surfaces

Cutting edges

Toe/tip

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9
Q

What kind of stroke is used for perio probing?

A

Walking stroke without removing from tissue and without causing trauma

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10
Q

What is the ideal stroke pressure?

A

10 - 20 grams

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11
Q

How many measurements are recorded per tooth?

A

6

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12
Q

What factors limit the accuracy of perio measurements?

A

Position of the gingival margin

Interference from calculus deposits

Overhangs

Amount of pressure

Misread probe calibrations

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13
Q

What are the furcation gradations?*

A

Grade I:

Grade II:

Grade III:

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14
Q

What are the furcation gradations?*

A

Grade I:

Grade II:

Grade III:

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15
Q

What are the classes of mobility?*

A

Class I

Class II

Class III

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16
Q

Which teeth are assessed in CPITN?*

A

1s

6s

7s

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17
Q

What are the CPITN classifications?*

A

a

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18
Q

What is CPITN?*

A

a

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19
Q

What are the advantages of sharpening instruments?

A

Easier calc removal

Improved stroke control

Reduced number of strokes

Increased patient comfort

Reduced fatigue

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20
Q

What is the cutting edge a junction of?

A

Face and lateral edge

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21
Q

What is the internal angle on working end of the graceys?

A

70 - 80 degrees

22
Q

What is the internal angle of the universal working end?

A

70 - 80 degrees

23
Q

What are the differences between site-specific instruments relative to the unviersal?

A

Site-specific instruments have long, complex, lower shanks whereas universals have parallel edges.

Tilted edge

Only 1 cutting edge

24
Q

Why is universal named that way?

A

Design features are made for anterior and posterior teeth:

Rounded back

Rounded toe

Semi-circular x-section

2 cutting edges

Face is perpendicular to the lower shank

25
Q

How can small to medium calculus deposits be removed?

A

Using universal curettes

26
Q

Why would we want to increase the working end length?

A

To reach the mesial/distal midline (longer is better for proximal surfaces of posterior teeth)

27
Q

Which cutting edge is used for anterior teeth with universal instrument?

A

Outer edge (M with one end and D with the other) The lower shank reaches across the tooth.

28
Q

What are the options for advanced fulcrums?

A

Finger-on-finger

Cross arch (L/R)

Opposite arch (max/mand)

Finger assist (non-dominant hand used to concentrate lateral pressure against the shank)

Extraoral - including chin cup

29
Q

What are the advantages of extraoral fulcrums?

A

Easier access to maxillary 7s and 8s as well as to deeper pockets (especially narrow ones)

Improved parallelism of lower shank to molar teeth

Neutral wrist position for molar teeth

30
Q

What technique is used for deep pockets?

A

Extraoral fulcrums

31
Q

What are the disadvantages of using advanced extraoral fulcrums?

A

Greater degree of muscle coordination and instrumentation skill required

Greater risk of instrument stick injury

Reduced tactile information

TMJ problem makes patient unable to tolerate it.

32
Q

What are the ways of performing extraoral fulcrums?

A

Knuckle rest with palm facing out OR

Chin cup

33
Q

What are the benefits of a standard intraoral fulcrum?

A

Highest stability

Decreased likelihood of injury to patient or clinician (least strain on fingers)

Best leverage during instrumentation

34
Q

What are the functions of a perio explorer?

A

Examination of:

Calculus deposits

Dental anomalies

Anatomical features

Dental restorations and sealants

35
Q

What are the features of a 11/12 type explorer?

A

Tip is 90 degrees to lower shank

Long complex shank

36
Q

What are the advantages to using an 11/12 type explorer?

A

Smooth back of tip contacts soft tissue

Complex shank

Universality is useful

37
Q

What type of stroke is used to detect calculus?

A

Assessment / Exploratory stroke

38
Q

What does a gritty bump tell us about calculus?

A

Could be small calculus

Ledge of calculus

Overhang

Underhang

Caries

39
Q

What do you touch at the bottom of the gingival sulcus?

A

Junctional epithelium

40
Q

What information can’t be gathered from probing depth?

A

Alveolar bone loss because it takes into account the gingival margin normally.

This means if there is movement of the gingival margin from its normal position slightly above the CEJ then the bone loss can’t be gathered from probing depth alone.

41
Q

What is the clinical attachment level?

A

The location of the periodontal attachment system on the tooth.

Probing depth + gingival recession

42
Q

What is furcation involvement?

A

Loss of alveolar bone and PDL in the space between the roots of a multirooted tooth

43
Q

What are the parts of the working end of the curette?

A

Leading (toe)

Middle

Heel

44
Q

4 ways to detect calculus, then explain the best version

A

Tactile

Visual inspection

Radiograph

Perioscope

45
Q

What are the steps taken to sharpen a gracey?

A

Hold a stone 75 degrees to the ground

Hold instrument in your palm with the face of the instrument parallel with the countertop

Sharpen with upward stroke of the instrument

Sharpen the heel the middle and the toe separately

Make sure to sharpen around the edge of the toe to maintain the rounded curve at the toe

46
Q

What are the 3 things charted on a perio chart?

A

Margin is -ve above CEJ and +ve below

Pocket depth is distance from margin to bottom of pocket

CAL is margin + pocket depth

47
Q

What is the angulation of insertion/debridement?

A

Insertion = 0 - 40 degrees (Ideally 0)

Debridement = Angle of 60 - 80 ideally

48
Q

Which end of Universal instrument to use for mesial/distal of molars and to label on an instrument which that is

A

Inner edge is used for the distal side

Outer edge is used on facial, lingual, and mesial surfaces

49
Q

Give 5 important aspects of probing technique:

A

Walking the probe

Walking around the entire circumference

Adaptation

Parallelism

Stroke pressure (10 - 20g)

50
Q

What are the identifying features of a hoe

A

working end is a 99 degree bend at the edge of the working end where the toe of the curet is

51
Q

What are the identifying features of a 17/18?

A

It is purple with a label

52
Q

What are the identifying features of a naber’s probe?

A

Graduated with a sickle shape

DMD2 sem 2 (97 decks)

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