operative

Question 1

transillumination…decalcified enamel and dentin _____light

Answer 1

absorb

Question 2

For class 3 restoration, ____ is used when surrounded by enamel. _____ is used when surrounded by cementum/dentin

Answer 2

composite resin

resin modified glass ionomer

Question 3

Class 3 most common method

Answer 3

lingual method

Question 4

Etching etches ___ of surface and penetrates ___.

Answer 4

10ym

25-75ym

Question 5

Bonding resin (before composite) cure for:
composite cure for:

Answer 5

10s

40s

Question 6

Freshly cut enamel produces _____ greater bond strength than uncut

Answer 6

25-50%

Question 7

Resin based dentin adhesion relies on _____

Answer 7

demineralization (micromechanical)

Question 8

WHy is sclerosed dentin hard to etch?

Answer 8

It’s highly mineralized.

Question 9

3 methods of attachment..
smear layer penetration:
tubular penetration:
resin impregnation:

Answer 9

smear layer penetration: self etch systems (minor retentive features)
tubular penetration: moderate retentive features
resin impregnation: dentin demineralization. Major retentive feature

Question 10

Which provides a longer and more durable bond (enamel or dentin)

Answer 10

ENAMEL

Question 11

3 dimensions of color..
Hue:
Chroma:
value:

Answer 11

Hue: primary colors
Chroma: saturation
value: brightness

Question 12

ideal width to length ratio

Answer 12

.75 (lateral) - .8 (central)

Question 13

Intensives:
Opalescence:

Answer 13

white spots of different types and shapes

blue/gray transparent effects in enamel

Question 14

SHade guides...
A:
B:
C:
D:

Answer 14

A: brown
B: yellow
C: JUST gray
D: red-gray

Question 15

which shade is used more than 50% of time

Answer 15

a2

Question 16

HOw long do you etch teeth

Answer 16

15-20s