Composites

Question 1

most commonly found in formulations

Answer 1

Bis-GMA

Question 2

generally combined with Bis-GMA

Answer 2

UDMA

Question 3

most popular diluent

Answer 3

TEGDMA (TEGMA)

Question 4

derivative of Bis-GMA, diluent

Answer 4

Bis-EMA

Question 5

new formulations

Answer 5

Low-shrink monomers

Question 6

 Most available in formulations Relatively High Molecular Weight
Relatively Low Polymerization Shrinkage
Relatively Low Degree of Conversion
Relatively High Viscosity

Answer 6

Bis-GMA

Question 7

Usually combined with Bis-GMA 
Relatively High Molecular Weight
 Relatively Low Polymerization
Shrinkage
Higher Degree of Conversion Less Viscous than Bis-GMA, but still very viscous

Answer 7

UDMA

Question 8

Most common Diluent
Lower Molecular Weight Higher Polymerization Shrinkage
Higher Degree of Conversion Lower Viscosity

Answer 8

TEGDMA

Question 9

Relatively high molecular weight (volume)
Lower polymerization shrinkage
Higher degree of conversion Lower viscosity

Answer 9

Bis-EMA

Question 10

which has the highest MW

Answer 10

BisEMA (540)

Question 11

Which has the highest Viscosity

Answer 11

BisGMA (1200)

Question 12

Pigments

Answer 12

Metallic Oxides

1. FeO2, NiO (brown)
2. MnO (bluish)
3. TiO (yellowish)
4. CoO (blue

Question 13

Inhibitors

Answer 13

1. Butylated hydroxytoluene

2. Hydroquinone

Question 14

Identify the Inorganic filler:
 Relatively Hard (difficult to mill into small particles)
  Relatively Large (10-50 μm)
 Difficult to Finish/Polish
 Relatively Low Radio-opacity

Answer 14

Quartz

Question 15

Identify the Inorganic filler:
 Relatively Soft
 Relatively Small (0.002 – 0.04 μm) 
 Very easy to Finish/Polish
 Relatively Low Radio-opacity

Answer 15

Silica

Question 16

Identify the Inorganic filler
 Softer than quartz, harder than colloidal silica 
 Small (0.1 – 1 μm)
 Easy to Finish/Polish
 Radio-opacity (barium or zinc oxides)
 Chemically active (bioactive)

Answer 16

Glasses (e.g. borosilicate glass, lithium or barium aluminum silicate glass, strontium, or zinc glass)

Question 17

Identify the Inorganic filler
 Softer than quartz, harder than colloidal silica  Small (0.002 – 0.075 μm)
 Very Easy to Finish/Polish
 Radio-opacity (oxides)
 Chemically active (bioactive)

Answer 17

Zirconia

Question 18

Light-cured or Self-cured

Answer 18

Curing activation mode

Question 19

type or % volume

Answer 19

Filler particle size

Question 20

low-viscosity or high-viscosity

Answer 20

Consistency

Question 21

laboratorial, bulk, core-build up

Answer 21

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