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Dental Assisting > CDYE > Flashcards

CDYE Flashcards

1
Q

When positioning always check

A

Me, my patient, my light

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2
Q

Eye level for dental assistant

A

4-6 inches above operators head

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3
Q

Supine position

A

Patient head same level as their knees

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4
Q

Distance between patients face and operator

A

12-14 inches

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5
Q

Light position maxillary

A

On an angle towards maxilla 45 degrees

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6
Q

Light position mandibular

A

Directly above mandible 90 degrees

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7
Q

Which body motions are not ideal

A

Class IV and V

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8
Q

Body motions class I

A

Movement of fingers only

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9
Q

Motions class II

A

Fingers and wrist motion only

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10
Q

Motions class III

A

Fingers wrist and elbow (reaching for hand piece)

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11
Q

Motion class IV

A

The entire arm and shoulder

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12
Q

Motion class V

A

Entire upper torso

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13
Q

Patients head is towards which clock position

A

12 o’clock

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14
Q

Operators zone

A

Where person completing procedure is seated: right handed 7-12 left 12-5

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15
Q

Transfer zone

A

Where instruments and materials are exchanged over patients chest: right handed 4-7 left 5-8

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16
Q

Assistants zone

A

Right handed 2-4 left handed 8-10

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17
Q

Static zone

A

Directly behind patient. Countertop space, or portable equipment: right hand 12-2 left 10-12

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18
Q

Two handed transfer

A

Bulky instruments, rubber dam forceps, surgical instruments, hinged. (Mouth mirror right hand, explorer left hand)

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19
Q

Single handed exchange

A

Two last finger on left hand to retrieve instruments. Hand instruments, A/W syringe and hand pieces

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20
Q

If fogging occurs on the mouth mirror

A

Rub the reflecting surface against the patients buccal mucosa, blow a gentle stream of air across it or wipe it with a sterile gauze

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21
Q

Intra oral fulcrum

A

Tip of ring finger rests on a stable structure, is unbent, supporting the weight of the hand and instrument inside patients mouth

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22
Q

Extra oral fulcrum

A

Tip or side of finger rests against structure finger may be bent or straight outside the patients mouth

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23
Q

Saliva ejector

A

Fluoride treatment, sealants, under dental dam, cementation of crown or bridge, during orthodontic bonding

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24
Q

HVE

A

Keeps mouth free of saliva, blood, water and debris, retracts tongue and cheek away from the field of operation, reduces aerosol cause by high speed

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25
Q

Isolation techniques

A

Cotton rolls, dry angles, dental dam

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26
Q

Indications for dental dam

A

Controls moisture, improves visibility, improves client management

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27
Q

Dental dam lubricant

A

Water soluble lubricant placed on the underside of the dental dam to help material slide over teeth

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28
Q

Dental dam frames

A

Plastic u frame places under dam, young frame stainless steel placed on outside of dam, ostby frame round and plastic places outside dam

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29
Q

Sublingual clamps used for

A

Partial erupted/ class V

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30
Q

Cervical clamps used for

A

Class v

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31
Q

Universal clamps

A

Placed on same tooth in the opposing quadrant as the jaws are same size on both sides

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32
Q

Dental dam placement

A

Make sure teeth are free of plaque and debris and check chart for latex sensitivity

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33
Q

Dental dam placement techniques one step method

A

Dam and clamp placed at the same time

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34
Q

Dental dam placement techniques two step method

A

Clamp placed first then dam material is stretched over it

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35
Q

Punching dam: how far are holes punched away from eachother

A

3-3.5mm

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36
Q

Punching dam to flat or wide results in

A

Folds or bunching and stretching on lingual

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37
Q

Punching the dam to curved or narrow results in

A

Folds and stretching on the facial

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38
Q

Hand instruments design

A

Handle shank and working end

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39
Q

Working end can have a

A

Point blade or nib

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40
Q

There number formula 1st number

A

Width of blade in tenths of mm

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41
Q

3 # formula second number

A

Length of blade in mm

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42
Q

3 # formula third number

A

Angle of blade in degrees to the long axis of handle

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43
Q

Four # formula first number

A

Width of blade

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44
Q

4 # formula second number

A

Degree of the angle of cutting edge

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45
Q

4 # formula third number

A

Length of blade

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46
Q

4 # formula fourth number

A

Angle of blade to long axis of handle

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47
Q

Allow operator to examine health of oral cavity

A

Examination instruments

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48
Q

Assist in design of the cavity prep, refines and defines the walls (6 total)

A

Hand cutting

49
Q

Allow operator to place, condense and carve dental materials to the original anatomy

A

Restorative instruments

50
Q

Miscellaneous instruments and items used to complete a procedure

A

Accessory instruments

51
Q

Mouth mirror used for

A

Indirect vision, light reflection, retraction, transillumination (anterior)

52
Q

Allows operator to use tactile sense to distinguish areas of calculus, decay or other irregularities

A

Explorer

53
Q

Used to carry, place, and retrieve small objects such as cotton products to and from the mouth

A

Cotton pliers

54
Q

Excavators (spoon)

A

Used primarily to remove carious material and debris from teeth can also be used for removing excess cement, inverting rubber dam

55
Q

Use in a downward pushing motion to form and define point angles and sharpen line angles (4 numbered instrument)

A

Angle former

56
Q

Used to shape and plane enamel and dentin walls of cavity preparation

A

Chisels

57
Q

Clean and smooth the walls in a cavity prep, to remove enamel not supported by dentin

A

Hatchet

58
Q

Used to bevel the gingival margin wall of the cavity prep

A

Gingival margin trimmers

59
Q

Mesial gingival margin trimmer numbers

A

Angle 85 degrees or less

60
Q

Distal gingival margin trimmer number

A

Angle 90 degrees or more

61
Q

Used to clean and smooth the floor of the cavity prep (blade is perpendicular with handle)

A

Hoe

62
Q

Designed to carry and dispense amalgam (smallest end used to start the filling process)

A

Amalgam carrier

63
Q

Used to pack filling material into cavity preparation

A

Condensers (pluggers)

64
Q

Used to smooth rough margins of the restoration and shape metal matrix bands once placed.

A

Burnishers (beaver tail, acorn, football, t ball, and ball shape)

65
Q

Used to remove excess restorative material and carve anatomy in restoration before it hardens

A

Carvers

66
Q

Carver used on occlusal surface

A

Discoid-Cleoid

67
Q

Carver used interproximal

A

Hollenback carver

68
Q

Discoid end is shaped

A

Disc shaped

69
Q

Cleoid end is shaped

A

Pointed

70
Q

Designed to carry, place, condense and carve composite material in cavity prep

A

Plastic filling instruments (PFI)

71
Q

Trim excess filling material, working end has sharp knife like blade often used inter proximal along the margin

A

Finishing knife

72
Q

Accessory instruments: used to mix dental materials

A

Spatula

73
Q

Accessory instruments: used for cutting dental dam, retraction cord and stainless steel crowns

A

Brown and bridge scissors

74
Q

Accessory instruments: hold dental materials/ liquids

A

Dappen dish

75
Q

Accessory instruments: newly mixed amalgam is placed in here then picked up in the amalgam carrier for transfer

A

Amalgam well

76
Q

Accessory instruments: carry cotton products to and from oral cavity, removing matrix band, placing and removing wedges

A

Howe pliers/ 110

77
Q

Straight and short, speed ranges from 10,000 to 40,000 rotations per minute, operates the rotary instrument in either forward or back ward movement

A

Low speed

78
Q

Operates at speeds up to 450,000 rpm, maintains a water coolant system, operate with a friction grip device, some have a light

A

High speed hand piece

79
Q

High speed use

A

Rotary instruments used to remove decay and old or faulty restorations

80
Q

Small version of sandblaster, produces a high pressure delivery of aluminum oxide particles through a small probe

A

Air abrasion

81
Q

Operates at speeds up to 20,000 rpm, provides greater torque than hand pieces that are used intraorally

A

Laboratory hand piece

82
Q

3 basic parts to rotary instruments

A

Shank, neck, head (working end)

83
Q

Portion that fits into hand piece

A

Shank (latch type: low speed. straight shank: laboratory. Friction grip: high speed.

84
Q

Used for tooth prep, excavations decay, finishing cavity walls, finishing surfaces , drilling out old fillings, finishing crown prep, separating crowns and bridges, adjusting acrylic temporary crowns

A

Dental burs

85
Q

What are cutting burs made of

A

Tungsten carbide

86
Q

Burs: Used as initial entry into lesions, excavation of caries and placement of retentive features

A

Round bur (low speed) latch

87
Q

Burs: Used for refining internal features of cavity prep, creating line angles and retention/ undercuts, flattening internal walls and removing decay (low speed)

A

Inverted cone (latch)

88
Q

Plain cut initial entry into tooth and helps in forming the internal walls of prep

A

Straight fissure plain

89
Q

Cross cut helps in forming internal walls of preparation

A

Straight fissure cross cut

90
Q

Burs: used for the bulk of cavity prep extension to final outline form and smoothing of internal cavity walls

A

Straight fissure burs

91
Q

Plain and cross cut help in providing angles to the walls of the prepared tooth

A

Tapered fissure burs

92
Q

Burs: used in providing initial entry into tooth and a conservative cavity prep with rounded internal line angles

A

Pear burs

93
Q

Burs: creates a shoulder for the margin of a crown prep

A

End cutting burs

94
Q

Similar to cutting bur, except the number of blades or flutes are increased, the greater the number of flutes the greater it’s polishing capability

A

Finishing rotary instruments

95
Q

Brownie finishing instrument for amalgam does what

A

Smooths

96
Q

Greenie finishing instrument in amalgam does what

A

Polishes (slow speed)

97
Q

Used for final finishing and polishing of composite

A

Cuttlebone adhered to discs and points

98
Q

Used to attach the abrasive disc to the hand piece

A

Mandrel

99
Q

Cavity wall that does not extend to the external tooth surface

A

Internal wall

100
Q

Surface of the tooth prep that extends to the external tooth surface, named according to the tooth surface involved: distal mesial facial lingual and gingival

A

External wall

101
Q

Type of internal wall/ surface of the prepared tooth that runs parallel to the long axis of the tooth

A

Axial wall

102
Q

Internal wall of a prepared tooth that is perpendicular to the long axis of the tooth (wall that overlies the pulp)

A

Pulpal wall

103
Q

Angle formed by the junction of 2 walls / surfaces in a cavity prep

A

Line angle

104
Q

Initial cavity prep resistance form:

A

Dentist determines the primary shape and placement of cavity walls

105
Q

Initial cavity prep: retention form

A

Dentist knows where to place retention to prevent displacement (vertical forces)

106
Q

Initial cavity prep: convenience form

A

Accessibility in preparing and restoring (opens tooth to have enough visibility to decay)

107
Q

Removal of decayed dentin or old restorative material, insert retention notches needed, placing materials such as liners, bases or binding agents

A

Final cavity prep

108
Q

Where decay has extended beyond normal size or shape

A

Complex restorations

109
Q

Retention pins placed

A

When decay has extended into the cusp of tooth (1 pin per cusp affected)

110
Q

Matrix system must be used when

A

A wall of a tooth is affected (mesial or distal)

111
Q

Thin layer of tooth coloured material that is placed chairside to the facial surface of a tooth

A

Direct veneers (composite)

112
Q

Porcelain fabricated in the dental lab (2 appointments)

A

Indirect veneers

113
Q

If restoration extends onto buccal what type of tofflemire is placed with a slight bend to accommodate to positioning from lingual

A

Contra angle tofflemire

114
Q

Diagonal slot on tofflemire always faces towards the

A

Gingiva

115
Q

Matrix band is

A

Properly contoured piece of stainless steel material to give support and form to the restorative material

116
Q

Extension matrix bands are used for

A

Class II with more extensive preparation and requires extensions to compensate for loss of cusp

117
Q

Matrix band loop placed towards the flat side for which quadrants

A

2 and 4

118
Q

Matrix band loop placed towards the screw when used with what quadrants

A

1 and 3

119
Q

The wedge is placed

A

Lingual side where the interproximal wall is missing

Dental Assisting (5 decks)

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