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dent station exam > station exam spring D1 > Flashcards

station exam spring D1 Flashcards

1
Q
A

Class 1 Prep

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2
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Class 2 prep

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3
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Class 3 prep

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4
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class 4 prep

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5
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class 5 prep

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6
Q
A

root caries/ senile caries

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7
Q
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Non carious cervical lesions: erosion abrasion & abfraction

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8
Q
A

class 6 prep

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9
Q
A

cavosurface margin: external outline form

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10
Q
A

red dark line= external outline form of cavosurface margin
inside= internal outline form

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11
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A
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12
Q
A

isthmus width

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13
Q
A

intercuspal distance

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14
Q

convergent, divergent or parallel?

A

convergent

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15
Q
A

remaining dentin thickness: between floor of prep & pulp

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16
Q
A

left= highspeed: cuts enamel, outline + extension of prep &&& friction grip burs

right= slowspeed: wont cut enamel
caries excavation, prep refinement, retention grooves
&&& latch burs

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17
Q
A

head= cutting part, working part of bur

neck= connects head to shank
shank= fits into handpiece
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18
Q
A

friction grip—high speel & can be slow speed

latch type—slow speed only

straight handpiece= lab handpiece

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19
Q
A

1-round
2-inverted cone
3-pear shaped
4-straight fissure
5-tapered fissure

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20
Q
A

round bur

  • rounded preps
  • 1/4 sized = for retention grooves
  • slow speed round burs are for excavating caries
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21
Q
A

pear shaped
-rounded preps w/ convergent walls

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22
Q
A

inverted cone

  • undercut prep wall
  • sharp convergent prep
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23
Q
A

straight fissure

  • parallel walls & flat floors
  • not end cutting, only the sides cut
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24
Q
A

tapered fissure
-tapered walls (divergent)

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25
Q
A

finishing burs

  • contour & smooth surface of restoration
  • higher number of flutes= smoother surface
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26
Q
A

lab burs

  • triming acrylic
  • denture adjustment
  • extra oral use
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27
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28
Q
A

13-95-8-14

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29
Q
A

enamel hatchet

  • not curved
  • cuts enamel w/ push stroke
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30
Q
A

gingival margin trimmer

  • curved
  • cutting edge at angle
  • refinement (esp. at gingival margin of proximal box)
  • lateral scraping
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31
Q
A

spoon excavator

  • caries removal
  • check hardness/softness of dentin
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32
Q
A

condensers

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33
Q
A

carving instruments for anatomy

  • scaler
  • discoid cleoid
  • half hollenback
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34
Q
A

composite placement spatula

-placememnt & shaping resin composite

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35
Q
A

amalgam carrier
-transfer of amalgam from amalgam well to the cavity prep

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36
Q
A

tofflemire matrix retainer

-used when condensing a 2 surface restoration

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37
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A
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38
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39
Q
A

30 gauge

27 gauge

25 gauge

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40
Q
A

-posterior superior alveolar nerve block
-max molars (3)
-not MB root of max 1st molar
-dont enter infratemporal fossa

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41
Q
A
  • *middle superior alveolar nerve block**
  • pulp & buccal perio tissues
  • Max 1 & 2nd premolars
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42
Q
A
  • *anterior superior alveolar nerve block**
  • effects anterior/middle superior alveolar nerve & infraorbital nerve
  • maxillary central incisor through canine pulp, bone & perio tissues
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43
Q
A
  • *greater palatine nerve**
  • posterior portion of the hard palate, up to premolars
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44
Q
A
  • *nasopalatine nerve**
  • anterior portion of hard palate from l. to r. 1st premolars
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45
Q
A
  • *inferior alveolar nerve block**
  • mandibular teeth to midline, body of mandible, inferior ramus, buccal mucoperiosteum
  • anterior 2/3 of tongue & floor of oral cavity
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46
Q
A
  • *mental nerve**
  • buccal mucosal membrane anterior to mental foramen—from 2nd premolar to midline
  • lower lips & skin of chin, pulpal nerve fibers to premoalrs, canine & incisors
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47
Q
A
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48
Q
A

infratemporal fossa

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49
Q
A
  • *long buccal-**–close to most distal molar
  • anesthetizes soft tissue & periosteum buccal to mandibular molar
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50
Q

1-silicone rubber plunger

2-aluminum cap

3-diaphragm

4-mylar stop

5-aspirating

A

1-seals glass tube, provides way for harpoon to engage, aiding in aspiration

2-on opposite end of plunger, holds thin diaphragm in position

3-semipermeable membrane

4-provides protection if glass breaks

5-create negative pressure at site of injection to see if it is in a blood vessel…don’t pull the needle out, so only pull back 1-2 mm. if there is blood, rotate the barrel syringe 45 degrees and try again

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51
Q

1-Wingless Retainer

vs

2-Winged Retainer

A

1- retainer postioned ON tooth WITHOUT rubber dam
dam is placed over retainer

2-dam is placed ON the wings of the retainer and BOTH retainer & rubber dam are applied to abutment…1 step application

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52
Q
A

N27—small molars

13A—lower left & upper right molars

12A—lower right & upper left molars

14A—partially erupted molars

(Buccal side of tooth has the wider side of the retainer)

53
Q
A

Anterior Retainer
Placed AFTER rubber dam

54
Q

extension

1-for incisors

2-for canines

3-posterior teeth

A

1-from 1st premolar to other 1st premolar

2-from 1 molar to the contralateral canine

3-1-2 posterior to treatment tooth to the contralateral canine

55
Q
A

Ball & Cone Burnisher

—contour restoration

56
Q
A

Spatula

  • for mixing cements & lining materials
  • smaller end is used for transfer/placement of material into cavity prep
57
Q
A 
left= front surface
right= not front surface

front surface mirrors avoid double immages bc reflective surface is at the surface of the mirror

non front surface= reflective surface is beneath a layer of glass

58
Q

Amalgam
properties of:

1-silver

2-tin

3-copper

4-zinc

A

1-inc strength

2-controls expansion, lengthens setting time

3-inc strength, reduces corrosion, reduces creep & marginal breakdown

4-prevents oxidation
-when contaminated w/ moisture during placement Zn amalgam will have delayed expansion

59
Q

Amalgam

1-indium

2-palladium

3-platinum

particle types

4-lathe cut

5-spherical

6-ad mix

A

1-permite SDI= reduces creep, inc strength

2-valian phD= reduces corrosion & tarnish

3-logic+ = inc compressive & tensile strength

4-irregular shapes

5-spheres make it the most stable shape w/ lowest surface energy

6-combination of spherical & lathe cut

60
Q

Spherical Amalgam vs. Admix Amalgam

A

Spherical Amalgam—needs less mercury & less condensation forced

  • gets compressive strength earlier than lathe cute
  • smooth surface texture

Admix Amalgam—needs higher condensation forces
-easier to produce proximal contact areas in proximal restorations

61
Q

1-amalgam under triturated vs over triturated

A

1-under triturated= dry & crumbly

  • insufficient matrix to hold amalgam together
  • difficult to condense
  • poor corrosion

over triturated= wet & soupy

  • excessive expansion
  • reduced strength
62
Q

Comparison

1-resin composite

2-glass ionomer

3-resin modified

4-amalgam

A

1-esthetic, light cured, poly shrinkage
coefficient of thermal= greater than tooth
good wear resistance, no fluoride release

2-less esthetic, chemical cured, low shrinkage
coefficient of thermal= similar to tooth
low wear resistance
medium high fluoride release

3-more esthetic= conventional GI, but opaque
chemical & light cured
imrpoved wear resistance
medium high fluoride release

4-not esthetic, not conservative, not technique sensitve

  • no dimensional change upon setting
  • no gap formation at gingval margin from poly shrinkage
63
Q

RMGI Steps

A

1-pumice
2-shade selection
3-isolation
4-prep tooth
5-dentin condition w/ 20% polyacrylic acid—preps dentin surfaces w/o opening tubules
6-rinse: leaves dentin moist
7-apply: RMGI
8-Cure for 20 secc
9- contour restoration w/ 30 fluted finish bur
10-etch enamel margins, rinse & dry
11-apply G coat and then cure for 20 sec

64
Q

Composite Steps

A

1-pumice/shade selection/ isolation
2-prep
3- etch enamel for 30 sec and dentin for 15 sec w/ 30-40% phosphoric acid (removes smear layer & demineralizes dentin)
4-rinse 10 s
5- apply bonding agent—excite F & cure
6-place composite in incrememnts w/ curing for 20 sec
7-polish composite w/ enhance polishing cup using silicone carbide brush

65
Q
A

Top:not clinically acceptable
-proximal contacts are over 1 mm—smallest condenser passes through proximal contact

Bottom: not clinically acceptable
-proximal/gingival contact isnt open

66
Q
A

Not clinically acceptable
-isthmus width is greater than 1.6 mm

67
Q
A
  • not clinically acceptable
  • walls are divergent
68
Q
A

Not clinically acceptable
-prep tilted towards the buccal

69
Q
A

not clinically acceptable
margins are chipped or have areas of friable enamel

70
Q
A

left= divergent

right= convergent

71
Q

1- direct restorations for amalgam

2-direct restorations for composite

3-direct restorations gold/ceramic

A

1-requires buccal & lingual walls that converge bc amalgam is plastic so when placed in prep it hardens
so the convergent walls= retention for material

2-can have convergent or parallel walls bc resin is bonded to the tooth structure for retention when placed in prep it hardens when exposed to curing light

3-requires buccal linguwal walls that are divergent bc restoration is fabricated outside the mouth and then cemented into palce

72
Q

Steps in Cavity Prep

A

1-establish outline form
2-obtain resistance form
3-obtain retention form
4-obtain convenience form
5-remove remaining infected dentin/prior restorative material
6-pulp protection
7-finish enamel walls & cavosurface margins
8-clean prep

73
Q
A
  • marginal discrepancies
  • excess or tooth ledge
74
Q
A

not clinically acceptabe—marginal discrepancies
-excess or tooth ledge

75
Q
A

not clinically acceptable
-void at the margin

76
Q
A

not clinically acceptable
-proximal contacts are open

77
Q
A

floss cant pass or floss shreds…proximal contact is too tight

78
Q
A

not clinically acceptable
-contour of restoration is flat or bulky & would require replacement

79
Q
A

not clinically acceptable
-normal occlusal anatomy is not reprouced

80
Q
A
  • not clinically acceptable
  • marginal ridge is too high or low or misshaped
81
Q
A
  • not clinically acceptable
  • occlusal contact is the only contact in the quadrant
82
Q
A

top chair= height adjustment for back support
front lever=seat height adjustment arm
back lever= adjustment arm for lower back support

83
Q
A

mandibular arch= 45

84
Q
A

red=on/off
blue=intensity
green=color spectrum

85
Q
A

blue= handle
red=shank
mirror=working end

86
Q

1-Don

2-Doff

A

1-gowns, masks, eye protection, gloves

2-gloves, eyeware, mask, gown

87
Q

1-provider posture

2-ergonomics & loupes

3-loupes

4-patient positioning

A

1-back straight, feet flat
height of stool so thighs are parallel to floot
back against backrest

2- taller people= longer working distance than shorter

3-enhance visuality + posture + comfort
working distance, declination angle & frame size
20 degrees or less neck flexion

4-patient lying with back flat
w/ maxillary, put teeth at 25 degree angle to vertical
support head rest so it supports the neck
mandibular arch the toso should be 30-45 angle to floor
adjust height of chair until patients oral cavity is treated at level of elbow w/ arms at your side and forearms perp.

88
Q

1-mandibular posterior occlusal
2-mandibular posterior buccal
3-maxillar posterior occlusal
4-maxillary & mandibular lingual

A

1-right handed= 7
left handed= 5

2-right= 9
left= 3

3-right=11
left=1

4-right & left= 12

89
Q
A

blush

90
Q
A

pulp exposure

91
Q
A

tetric evo ceram—80% weight 70% volume

92
Q
A

Bonding Agent—45% filled: excite F

93
Q

Pulp Protection Materials

A

1-varnishes, dentin sealers & dentin desensitizers= thin layer of material to seal dentinal tubules

2-bases= .75 mm of material to serve as a seal, thermal insulator & mechanical support of overlying restoration

3-liners= .5 mm material used to stimulate formation of reparative dentin

94
Q

1- direct pulp capping

2-indirect pulp capping

A

1-there is NO RDT, more successful in younger patients

  • attempt to repair small direct pulp exposure
  • D3110

2-.5 or less of RDT

  • incomplete caries removal
  • no direct pulp exposure but attempt to stimulate reparative dentin growth
  • D3120
95
Q

1-What to check before restoring a tooth w/ a large lesion

A

1-assess & test the pulp to determine if there is:

  • *vitality** & reversibility of inflammation (pulpitis)
  • if the tests are both neg then the situation will not be improved by any direct restorative procedure
96
Q

1-liners

A

1-have CaOH

  • antibacterial properties
  • soft material so use a harder material (base) over it before the restorative material
  • helps allow the pulp to heal/repair
97
Q

1-Varnishes

2-dentin sealers/desensitizers

3-bases

A

1-solution liners—physical barrier to passage of materials through dentinal tubulues, reducing procedural sensitivity
-cant be used under resin restoration, bc they will block the bond between resin & tooth

2-prevents penetration of bacteria & liquids during amalgam restoraton by sealing off dentinal tubulues

3-used when there is a concern regarding the restoration transmitting temp to the pulp, need to cover a softer material, or a need to provide a better seal to prevent microleakage
-usually use glass ionomers for this

98
Q
A

Top line= EITHER
adhesive bonding system (composite)
or dentin desensitizer(amalgam)

middle line= base

bottom line= calcium hydroxide (CaOH)

99
Q

1-Shallow Amalgam Restoration

2-Moderate Amalgam Restoration

3-Deep Amalgam Restoration

A

1-RDT 2mm +
No/No/ Dentin Desensitizer
(only DD on the top layer is needed)

2-RDT .5-2 mm
No/ + or -Base/ DD
(only base in the middle layer & dentin desensitizer on the top layer)

3-RDT 0.5 or less
CH/Base/DD
(Calcium Hydroxide on the bottom layer[liner], base in the middle, & Dentin desensitizer on the top layer)

100
Q

1-Shallow Composite Restoration

2-Moderate Composite Restoration

3-Deep Composite Restoration

A

1-RDT 2mm
No/No/ABS
(only adhesive bonding system on the top layer)

2-RDT 0.5-2 mm
No/No/ABS
(Only adhesive bonding system on the top layer)

3-RDT 0.5 mm or less
CH/Base/ABS
(calcium hydroxide on the bottom layer [liner], base in the middle layer, & adhesive bonding system on the top layer)

101
Q
A

polish w/ green DCIM then gray DCI—rinse between 2 points

102
Q
A

Enhance point…

use either this or the DCIM/DCI dont use both

103
Q
A

silicone carbide= obtaining high polish

104
Q
A

pit & fissure sealant

105
Q
A

kavo quattro care unit

106
Q
A

implant
abutment
crown

107
Q
A

titanium, gold, zirconia, ceramic

108
Q
A

external hex

109
Q
A

internal trilobe

110
Q
A

internal hex morse taper

111
Q
A

perio probes—measure crevice depths, clinical attachment levels, width of keratinized giniva, bleeding, pus, & size of oral lesions

UNC 12= 1-12 mm individual markings

Goldman Fox= rectangular in cross section: 1, 2, 3-5, 7, 8, 9, 10 (3-5) are combined

112
Q
A

furcation probe—Nabers 2N
-curved blunt tipped to get into furcation areas
double ended

113
Q
A

WHO probe or CPI probe

114
Q
A
115
Q
A
116
Q
A

Calculus & amalgam overhang are likely to collect bacterial pathogens that contribute to progression of perio diseases

117
Q
A

large deposits around the necks of the teeth

118
Q
A

overcontoured crown

119
Q
A

tipping/open contacts

120
Q
A

root fracture

121
Q
A

root caries

122
Q
A

recurrent caries= radiolucent area under restoration

restorations: amalgam/gold= radioopaque
composites= radioopaque, unless it is old then it is radiolucent

123
Q
A

creep

124
Q
A

open end of head is towards gingiva
closed end is towards occlusal

—use .0015 matrix bands: smaller circumference holds against cervical area of the tooth

125
Q
A

butt joint

126
Q
A

material over margin—flash/excess

127
Q
A

submarginal deficiency= ledge

128
Q
A

open margin- pit/void

dent station exam (1 decks)

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