Test Prep AACD Exam Questions

Question 6 of 147

Which of the following anatomical characteristics regarding the lips is correct?

A.

Lip morphology has little to do with bones and teeth

B.

Lips plump and drop with aging

C.

The philtrum of the lip is an accurate anatomical guide to the center of the face

D.

As one ages, the philtrum of the lip becomes more dominant

Suggested Answer: C

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Question 7 of 147

With acetone based adhesive systems, the strength of adhesion to dentin after etching with phosphoric acid can be increased by:

A.

Removing the smear layer to eliminate all surface debris.

B.

Drying the dentin completely.

C.

Treating the dentin with 10% NaOCI (sodium hypochlorite) and keeping it moist.

D.

Keeping the dentin moist.

Suggested Answer: D

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Question 8 of 147

Which of the following would be the main advantage of utilizing a layering technique with composite resin in restoring a disto-occlusal Class II restoration?

A.

Higher degree of polymerization and lower degree of tooth sensitivity

B.

Higher sheer strength and wear resistance

C.

Higher tensile strength and modulus of elasticity

D.

Better compressive strength

Suggested Answer: A

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Question 9 of 147

At home bleaching treatments are MOST effective for:

A.

Treatment of mild tetracycline discoloration.

B.

Treatment of trauma induced staining.

C.

Age-related discoloration.

D.

Mild to dark surface staining.

Suggested Answer: D

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Question 10 of 147

When determining the shade of a tooth, once the tooth becomes desiccated, it:

A.

Decreases in value.

B.

Becomes more translucent.

C.

Increases in value.

D.

Increases in chroma.

Suggested Answer: B

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