L1: Oper Dent & Class II Amalgam Prep Rvw Flashcards
why do you want isolation of operating field
better visualization better acces prep walls dry and clean your material work better prevents injury auto pt soft tissues prevents aspiration and swallowing of debris fewer aerosols
with isolation of operating field how do your material work better
- improper ties - direct contact of varnish/liner/base with cavity walls
- moisture affects bond as well as materials ability to set up
components of dental dam set up
rubber sheet, clamp, frame, punch, forceps
which side of rubber damn faces operator? patient?
dull side faces operator
shiny side against patient tongue, palate
different sizes of rubber dams for kids and adults
5x5 kids
6x6 adults
avg thickness [guage] of dental dam
heavy 0.010
material of frame
metal or plastic
when punch, which tooth gets larger hole
anchor tooth
how do you choose punch hole size
tooth size
forceps are used to
place clamps
holes in clamp correspond to extension in forceps
parts of retainer/clamp
bow
jaws
forceps holes
points
isolation of operating field is extremely important in ____ cases
composite
composite bonding requires ____ surface
uncontaminated
wet field =
recurrent caries or failed bond
for class II, how many teeth anterior and posterior to tooth your working on for the dam
1 posterior - anchor
2 anterior
how to use a dam for anterior
canine to canine
clamp on one premolar
for pedriatric how to isolate with dam?
only isolate teeth necessary
for endo how do you isolate
single tooth
for general isolation/FDP - general field isolation it may be acceptable to
cut a slit between holes
six steps to properly isolate
- prep work
- place clamp in dam
- place dam over tooth
- stretch dam through contacts
- invert dam
- ligate anterior tooth
how do you prep a dam
punch holes
check contact for floss shredding
mark occlusion
dont forget to tie clamp with
floss
can you use a dam with or without frame in place
yes
how do you invert a dam
delicately blow air around cervical area and push rubber into sulcus with plastic instrument
examples of antisialogogue meds [rarely used]
atropine
banthine
example of absorbents
cotton rolls
dry shield
2x2 gauze
cotton pellets
options to use for sectioning
high evacuation suction [ best with assistant]
saliva ejector
svedopter
Isovac
where are cotton rolls placed?
vestibule,
which absorbent is the least effective
2x2 guaze
dry shield blocks ___, retracts/protects ____
block parotid, retracts and protect cheek
how to remove cotton rolls and dry shield
wet when removing to avoid “cotton roll burn”
cotton pellets remove moisture:
from inside preps
when pt is sensitive to air and water spray
why is vented high evacuation suction better
reduces sucking up of tongue and mucosa
high evacuation suction very effective at
picking up debris
can be used to retract tissue
saliva ejector is _____ at removing debris
ineffective
do not have patient s close lips around suction
name of old fashion isovac
svedopter
3 additional tools used in isolation
retraction cord
bite block
anterior lip retractors
rubber dam is the _____ method of isolation
optimal NOT OPTIONAL
d1: caries extend only to _____
first 1/3 of dentin
what is the treatment planning consideration for D1
