RP lll

Question 1

empress ACC is what kind of ceramic?

Answer 1

Leucite reinforced

Question 2

how do you pretreat empress in the lab

Answer 2

hydro fluoric acid etch

Question 3

does empress (leucite) require a silane coupling agent

Answer 3

YES

Question 4

what kind of cement(s) do empress use

Answer 4

Resin cements, Nexus 3 (light cure/dual cure) or Multilink.

Question 5

tooth pretreatment for empress

Answer 5

phosphoric acid etch, then apply optibond solo plus, air then and cure. or apply multilink A and B self etch primer

Question 6

empress are used for what kind of restorations

Answer 6

veneers, inlays, onlays.

Question 7

e.Max press is what kind of ACC

Answer 7

lithium disilicate

Question 8

e.Max and Empress both use what kind of cements

Answer 8

Resin cements- Nexus 3.

Question 9

Do resin cements need coupling agents?

Answer 9

YES silane.

Question 10

CVC, MCC can use what cement

Answer 10

Rely X luting. Zinc Phosphate

Question 11

what do you do to pre treat zirconia?

Answer 11

apply Ivoclean, it remove saliva contamination or sand blast

Question 12

most common fractured tooth?

Answer 12

lower first molars, then upper first molars.

Question 13

when bonding a final crown what do you avoid with temporary cement?

Answer 13

eugenol. inhibits polymerization reactions.

Question 14

which veneer cements are light cure?

Answer 14

nexus 3

Question 15

what % of dental work is re-restorations

Answer 15

50-70%

Question 16

inlays and onlays with metal need a bevel? T/F

Answer 16

True

Question 17

do you bevel with tooth colored inlays and onlays

Answer 17

no bevel needed, more reduction though.

Question 18

reduction number for tooth colored inlay/onlay

Answer 18

1.5mm down center. 1.5-2mm over cusp. 1-1.5 axial to cusp

Question 19

do inlays or onlays reinforce teeth?

Answer 19

onlays do

Question 20

most common associated procedures with seating crowns

Answer 20

occlusal and contact problems

Question 21

3 properties of laser light

Answer 21

1. coherent- “in phase”
2. monochromatic
3. collimated.

Question 22

what temperature does vaporization happen with lazers

Answer 22

100 celcius or 212 F

Question 23

what class of lasers do we use?

Answer 23

Class 4

Question 24

diode laser

Answer 24

semiconductor, soft tissue

Question 25

ND:YAG laser

Answer 25

solid state laser-crystal, soft tissue

Question 26

Erbium lasers

Answer 26

Er,Cr:YSGG

Question 27

CO2 Lasers

Answer 27

Gas Laser, Soft tissue and bone, far infrared portion of electromagnetic spectrum