station exam spring D1 Flashcards
(128 cards)
1
Q
A
Class 1 Prep
2
Q
A
Class 2 prep
3
Q
A
Class 3 prep
4
Q
A
class 4 prep
5
Q
A
class 5 prep
6
Q
A
root caries/ senile caries
7
Q
A
Non carious cervical lesions: erosion abrasion & abfraction
8
Q
A
class 6 prep
9
Q
A
cavosurface margin: external outline form
10
Q
A
red dark line= external outline form of cavosurface margin
inside= internal outline form
11
Q
A
12
Q
A
isthmus width
13
Q
A
intercuspal distance
14
Q
convergent, divergent or parallel?
A
convergent
15
Q
A
remaining dentin thickness: between floor of prep & pulp
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
17
Q
A
head= cutting part, working part of bur
neck= connects head to shank shank= fits into handpiece
18
Q
A
friction grip—high speel & can be slow speed
latch type—slow speed only
straight handpiece= lab handpiece
19
Q
A
1-round
2-inverted cone
3-pear shaped
4-straight fissure
5-tapered fissure
20
Q
A
round bur
- rounded preps
- 1/4 sized = for retention grooves
- slow speed round burs are for excavating caries
21
Q
A
pear shaped
-rounded preps w/ convergent walls
22
Q
A
inverted cone
- undercut prep wall
- sharp convergent prep
23
Q
A
straight fissure
- parallel walls & flat floors
- not end cutting, only the sides cut
24
Q
A
tapered fissure
-tapered walls (divergent)
25
finishing burs
- contour & smooth surface of restoration
- higher number of flutes= smoother surface
26
lab burs
- triming acrylic
- denture adjustment
- extra oral use
27
28
13-95-8-14
29
enamel hatchet
- not curved
- cuts enamel w/ push stroke
30
gingival margin trimmer
- curved
- cutting edge at angle
- refinement (esp. at gingival margin of proximal box)
- lateral scraping
31
spoon excavator
- caries removal
- check hardness/softness of dentin
32
condensers
33
carving instruments for anatomy
- scaler
- discoid cleoid
- half hollenback
34
composite placement spatula
-placememnt & shaping resin composite
35
amalgam carrier
-transfer of amalgam from amalgam well to the cavity prep
36
tofflemire matrix retainer
-used when condensing a 2 surface restoration
37
38
39
30 gauge
27 gauge
25 gauge
40
**-posterior superior alveolar nerve block**
-max molars (3)
-not MB root of max 1st molar
_-dont enter infratemporal fossa_
41
* *middle superior alveolar nerve block**
- pulp & buccal perio tissues
- Max 1 & 2nd premolars
42
* *anterior superior alveolar nerve block**
- effects anterior/middle superior alveolar nerve & infraorbital nerve
- maxillary central incisor through canine pulp, bone & perio tissues
43
* *greater palatine nerve**
- posterior portion of the hard palate, up to premolars
44
* *nasopalatine nerve**
- anterior portion of hard palate from l. to r. 1st premolars
45
* *inferior alveolar nerve block**
- mandibular teeth to midline, body of mandible, inferior ramus, buccal mucoperiosteum
- anterior 2/3 of tongue & floor of oral cavity
46
* *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
47
48
infratemporal fossa
49
* *long buccal-**--close to most distal molar
- anesthetizes soft tissue & periosteum buccal to mandibular molar
50
1-silicone rubber plunger
2-aluminum cap
3-diaphragm
4-mylar stop
5-aspirating
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
51
1-Wingless Retainer
vs
2-Winged Retainer
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
52
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
Anterior Retainer
Placed AFTER rubber dam
54
extension
1-for incisors
2-for canines
3-posterior teeth
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
Ball & Cone Burnisher
---contour restoration
56
Spatula
- for mixing cements & lining materials
- smaller end is used for transfer/placement of material into cavity prep
57
```
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
**Amalgam**
properties of:
1-silver
2-tin
3-copper
4-zinc
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
**Amalgam**
1-indium
2-palladium
3-platinum
**particle types**
4-lathe cut
5-spherical
6-ad mix
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
Spherical Amalgam vs. Admix Amalgam
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
1-amalgam under triturated vs over triturated
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
Comparison
1-resin composite
2-glass ionomer
3-resin modified
4-amalgam
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
RMGI Steps
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
Composite Steps
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
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
Not clinically acceptable
-isthmus width is greater than 1.6 mm
67
- not clinically acceptable
- walls are divergent
68
Not clinically acceptable
-prep tilted towards the buccal
69
not clinically acceptable
margins are chipped or have areas of friable enamel
70
left= divergent
right= convergent
71
1- direct restorations for amalgam
2-direct restorations for composite
3-direct restorations gold/ceramic
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
Steps in Cavity Prep
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
- marginal discrepancies
- excess or tooth ledge
74
not clinically acceptabe---marginal discrepancies
-excess or tooth ledge
75
not clinically acceptable
-void at the margin
76
not clinically acceptable
-proximal contacts are open
77
floss cant pass or floss shreds...proximal contact is too tight
78
not clinically acceptable
-contour of restoration is flat or bulky & would require replacement
79
not clinically acceptable
-normal occlusal anatomy is not reprouced
80
- not clinically acceptable
- marginal ridge is too high or low or misshaped
81
- not clinically acceptable
- occlusal contact is the only contact in the quadrant
82
top chair= height adjustment for back support
front lever=seat height adjustment arm
back lever= adjustment arm for lower back support
83
mandibular arch= 45
84
red=on/off
blue=intensity
green=color spectrum
85
blue= handle
red=shank
mirror=working end
86
1-Don
2-Doff
1-gowns, masks, eye protection, gloves
2-gloves, eyeware, mask, gown
87
1-provider posture
2-ergonomics & loupes
3-loupes
4-patient positioning
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
1-mandibular posterior occlusal
2-mandibular posterior buccal
3-maxillar posterior occlusal
4-maxillary & mandibular lingual
1-right handed= 7
left handed= 5
```
2-right= 9
left= 3
```
3-right=11
left=1
4-right & left= 12
89
blush
90
pulp exposure
91
tetric evo ceram---80% weight 70% volume
92
Bonding Agent---45% filled: excite F
93
Pulp Protection Materials
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
1- direct pulp capping
2-indirect pulp capping
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
1-What to check before restoring a tooth w/ a large lesion
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
1-liners
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
1-Varnishes
2-dentin sealers/desensitizers
3-bases
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
Top line= _EITHER_
**adhesive bonding system** (composite)
or **dentin desensitizer**(amalgam)
middle line= base
bottom line= calcium hydroxide (CaOH)
99
1-Shallow Amalgam Restoration
2-Moderate Amalgam Restoration
3-Deep Amalgam Restoration
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
1-Shallow Composite Restoration
2-Moderate Composite Restoration
3-Deep Composite Restoration
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
polish w/ green DCIM then gray DCI---rinse between 2 points
102
Enhance point...
use either this or the DCIM/DCI dont use both
103
silicone carbide= obtaining high polish
104
pit & fissure sealant
105
kavo quattro care unit
106
implant
abutment
crown
107
titanium, gold, zirconia, ceramic
108
external hex
109
internal trilobe
110
internal hex morse taper
111
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
furcation probe---Nabers 2N
-curved blunt tipped to get into furcation areas
double ended
113
WHO probe or CPI probe
114
115
116
**Calculus** & **amalgam** **overhang** are likely to collect bacterial pathogens that contribute to progression of perio diseases
117
large deposits around the necks of the teeth
118
overcontoured crown
119
tipping/open contacts
120
root fracture
121
root caries
122
recurrent caries= radiolucent area under restoration
restorations: amalgam/gold= radioopaque
composites= radioopaque, unless it is old then it is radiolucent
123
creep
124
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
butt joint
126
material over margin---flash/excess
127
submarginal deficiency= ledge
128
open margin- pit/void
