Lec 8 - Mirror, Adhesion, Class III RBC Flashcards Preview

Direct Restorations > Lec 8 - Mirror, Adhesion, Class III RBC > Flashcards

Flashcards in Lec 8 - Mirror, Adhesion, Class III RBC Deck (48):
1

mirror should be positioned so not to contact the blank

handpiece

2

mirror should be positioned to avoid blank from the high speed handpiece

water spray

3

blank vision is preferred

direct

4

blank vision is used when using direct vision would result in improper operator positioning

indirect

5

proper position of mirror should be where we can see this as the center of focus

seeing bur contacting tooth

6

mirror position is constantly blank to see all surfaces of the preparation

changed

7

mirror should be positioned blank the wall being prepared

opposite

8

before using indirect vision, always use direct vision before the procedure to make sure blank is right

angle of the handpiece

9

other sensory feedback that can be used to monitor handpiece and bur

proprioceptive, tactile

10

mirror should be as blank as possible from handpiece

far

11

another uses of intraoral mirror

reflect light, retract cheek, retract tongue

12

result of interactions of a layer of intermediate material with two surfaces producing two adhesive interfaces

adhesive joint

13

intermediate material is aka

adhesive

14

two surfaces being stuck together

adherend

15

the guy who talked about selective demineralization of enamel

buonocore

16

the guy who developed the first bis gma resin

bowen

17

enamel is blank percent mineral, blank percent organic, blank percent water

95, 4, 1

18

enamel is formed by prisms of blank crystals

hydroxyapatite

19

dentin is blank percent inorganic, blank percent organic, blank percent water

70, 20, 10

20

dentin is a blank wet, and tubular structure

permeable

21

dentin is more mineralized type of dentin

peritubular

22

dentin rich in collagen fibers and is ideal for hybridization

intertubular

23

adhesion to tooth structure is primarily blank

micromechanical

24

current adhesive systems provide bonding to blank and blank substrates

hydrophilic, hydrophobic

25

current classification of dental adhesive systems

clinical application steps (1,2,3), or underlying adhesive strategy (etch and rinse, self etch)

26

this cleans and prepares surface and removes smear layer

etch (acid)

27

this infiltrates exposed collagen network and displaces moisture and links to hydrophobic adhesive

primer

28

this provides links to resin composite

adhesive

29

the only bonding material that forms a chemical bond

glass ionomer

30

optibond is a blank system

etch and rinse system

31

smear is the blank layer

mineralized

32

regardless of the method used, the enamel and dentin must be blank in order to achieve adhesion to the restorative resin

etching

33

ideal acid to etch enamel

phosphoric

34

phosphoric acid takes this long to etch

15-20 secs

35

phosphoric acid is a blank acid

inorganic

36

these can all have effects of acid etch

type of acid, etch time, acid conc, pH, form of etchant, rinse time

37

predictable bond strength of enamel etching

20 MPa

38

dentin should never be etched for longer than blank or it can be detrimental

15 secs

39

etched enamel has a blank appearance but dentin doesnt

chalky

40

deep dentin has more blank dentin so has blank bond strengths compared to superficial

peritubular (large tubules)

41

these are only needed in dentin because it is more hydrophilic

primers

42

primers are adhesion promoters that increase surface tension of the blank

collagen

43

adhesives are very blank so no moisture contamination

hydrophobic

44

adhesive like bis gma are more blank and blank viscous

hydrophobic, more

45

wet bonding means that blank is required

removal of smear layer

46

layer composed of resin, collagen fibrils, and partially demineralized dentin

hybrid layer

47

steps for dentin restoration

etch, primer, adhesive, resin composite

48

class 3 caries

smooth surface of proximal surfaces of anterior teeth beginning just gingival to contact