station exam spring D1 Flashcards
Class 1 Prep
Class 2 prep
Class 3 prep
class 4 prep
class 5 prep
root caries/ senile caries
Non carious cervical lesions: erosion abrasion & abfraction
class 6 prep
cavosurface margin: external outline form
red dark line= external outline form of cavosurface margin
inside= internal outline form
isthmus width
intercuspal distance
convergent, divergent or parallel?
convergent
remaining dentin thickness: between floor of prep & pulp
left= highspeed: cuts enamel, outline + extension of prep &&& friction grip burs
right= slowspeed: wont cut enamel
caries excavation, prep refinement, retention grooves
&&& latch burs
head= cutting part, working part of bur
neck= connects head to shank shank= fits into handpiece
friction grip—high speel & can be slow speed
latch type—slow speed only
straight handpiece= lab handpiece
1-round
2-inverted cone
3-pear shaped
4-straight fissure
5-tapered fissure
round bur
- rounded preps
- 1/4 sized = for retention grooves
- slow speed round burs are for excavating caries
pear shaped
-rounded preps w/ convergent walls
inverted cone
- undercut prep wall
- sharp convergent prep
straight fissure
- parallel walls & flat floors
- not end cutting, only the sides cut
tapered fissure
-tapered walls (divergent)
finishing burs
- contour & smooth surface of restoration
- higher number of flutes= smoother surface
lab burs
- triming acrylic
- denture adjustment
- extra oral use
13-95-8-14
enamel hatchet
- not curved
- cuts enamel w/ push stroke
gingival margin trimmer
- curved
- cutting edge at angle
- refinement (esp. at gingival margin of proximal box)
- lateral scraping
spoon excavator
- caries removal
- check hardness/softness of dentin
condensers
carving instruments for anatomy
- scaler
- discoid cleoid
- half hollenback
composite placement spatula
-placememnt & shaping resin composite
amalgam carrier
-transfer of amalgam from amalgam well to the cavity prep
tofflemire matrix retainer
-used when condensing a 2 surface restoration
30 gauge
27 gauge
25 gauge
-posterior superior alveolar nerve block
-max molars (3)
-not MB root of max 1st molar
-dont enter infratemporal fossa
- *middle superior alveolar nerve block**
- pulp & buccal perio tissues
- Max 1 & 2nd premolars
- *anterior superior alveolar nerve block**
- effects anterior/middle superior alveolar nerve & infraorbital nerve
- maxillary central incisor through canine pulp, bone & perio tissues
- *greater palatine nerve**
- posterior portion of the hard palate, up to premolars
- *nasopalatine nerve**
- anterior portion of hard palate from l. to r. 1st premolars
- *inferior alveolar nerve block**
- mandibular teeth to midline, body of mandible, inferior ramus, buccal mucoperiosteum
- anterior 2/3 of tongue & floor of oral cavity
- *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
infratemporal fossa
- *long buccal-**–close to most distal molar
- anesthetizes soft tissue & periosteum buccal to mandibular molar
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
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