Class III, IV, and V Composite Restorations Flashcards

1
Q

What are the steps in complete composite resin restoration?

A

Acid Etch
Prime
Bond/Adhesive
Place Composite

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2
Q

______ increases surface area; penetrates etched enamel creating micromechanical bond

A

Acid etch

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3
Q

If the tooth gets contaminated with saliva _________ and then rinse again and dry until frosted enamel appearance is present.

A

re-etch for 10 seconds

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4
Q

Teeth rich in fluoride require _____ etching times because fluoridated teeth are more resistant to acid

A

longer

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5
Q

◦Hydrophilic monomers in solvent
◦Draws adhesive in
◦This step is included with adhesive in our clinic

A

Primer

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6
Q

Resin bonding agent

A

Bond

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7
Q

The thin bonding agent engages the etched enamel through a _______ bond

A

micro-mechanical bond.

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8
Q

The self-curing or light-cured resin then ______bonds to the bonding agent

A

chemically

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9
Q

Primer/adhesive penetrate the intertubular dentin forming ______-

A

hybrid layer

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10
Q

What are created when the composite pulls back on the instrument?

A

Voids

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11
Q

Do opaque or translucent composites require longer curing time

A

Opaque

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12
Q

Large class III restorations require _____ shades especially when the preparation can be seen through from the facial to the lingual.

A

opaque shades

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13
Q

Light will pass through ______ shades in large restorations thus making the restoration stand out in a patients mouth

A

translucent

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14
Q

T/F: Etching and bonding is required between layers of resin

A

False

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15
Q

T/F: HOWEVER, if the surface gets contaminated between layers RE-ETCH the contaminated composite surface

A

True

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16
Q

After placement of composite restoration, an Oxygen-inhibited layer of resin will remain on the surface for a time
◦Additional composite can be added directly to this layer
◦No need to re-etch and bond

A

Oxygen inhibited layer

17
Q

When there are 2 preps next to each other, should you prep the larger or smaller prep?

A

Prep larger first

18
Q

When there are 2 preps next to each other, should you restore the larger or smaller prep?

A

Restore smaller first

19
Q

Should you etch multiple teeth or one at a time?

A

One at a time

20
Q

Incremental layering technique causes _____ polymerization stress

A

less

21
Q

What cement/line should not be used in anterior preps?

A

Eugenol/copalite

22
Q

SHould you use clear matrix on class 2 composite restorations/

A

No; lots of flash

23
Q

________ is used to contour class 3 restorations on the final layer

A

Mylar strip

24
Q

When there is excess composite on a class3 restoration, where should the excess be removed from?

A

incisal portion of prep

25
Q

How many blades do the carbide finishing burs have?

A

12

26
Q

________ Compresses the material with a matrix into the Class V preparation while giving a great contour

A

Cure-Thru Matrix

27
Q

On a class V restoration, should you finish on cementum?

A

No

28
Q

____ or ____ fill composite should be used on class V restorations:
◦lower modulus of elasticity (less stiff) than hybrids
◦won’t flex as readily
◦less likely to debond

A

Nanofill or microfill