RP lll Flashcards
empress ACC is what kind of ceramic?
Leucite reinforced
how do you pretreat empress in the lab
hydro fluoric acid etch
does empress (leucite) require a silane coupling agent
YES
what kind of cement(s) do empress use
Resin cements, Nexus 3 (light cure/dual cure) or Multilink.
tooth pretreatment for empress
phosphoric acid etch, then apply optibond solo plus, air then and cure. or apply multilink A and B self etch primer
empress are used for what kind of restorations
veneers, inlays, onlays.
e.Max press is what kind of ACC
lithium disilicate
e.Max and Empress both use what kind of cements
Resin cements- Nexus 3.
Do resin cements need coupling agents?
YES silane.
CVC, MCC can use what cement
Rely X luting. Zinc Phosphate
what do you do to pre treat zirconia?
apply Ivoclean, it remove saliva contamination or sand blast
most common fractured tooth?
lower first molars, then upper first molars.
when bonding a final crown what do you avoid with temporary cement?
eugenol. inhibits polymerization reactions.
which veneer cements are light cure?
nexus 3
what % of dental work is re-restorations
50-70%
inlays and onlays with metal need a bevel? T/F
True
do you bevel with tooth colored inlays and onlays
no bevel needed, more reduction though.
reduction number for tooth colored inlay/onlay
1.5mm down center. 1.5-2mm over cusp. 1-1.5 axial to cusp
do inlays or onlays reinforce teeth?
onlays do
most common associated procedures with seating crowns
occlusal and contact problems
3 properties of laser light
- coherent- “in phase”
- monochromatic
- collimated.
what temperature does vaporization happen with lazers
100 celcius or 212 F
what class of lasers do we use?
Class 4
diode laser
semiconductor, soft tissue
ND:YAG laser
solid state laser-crystal, soft tissue
Erbium lasers
Er,Cr:YSGG
CO2 Lasers
Gas Laser, Soft tissue and bone, far infrared portion of electromagnetic spectrum
