Test Prep AACD Exam Questions

Question 6 of 147

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

Lip morphology has little to do with bones and teeth

Lips plump and drop with aging

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

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

Correct Answer: C

Question 7 of 147

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

Removing the smear layer to eliminate all surface debris.

Drying the dentin completely.

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

Keeping the dentin moist.

Correct Answer: D

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?

Higher degree of polymerization and lower degree of tooth sensitivity

Higher sheer strength and wear resistance

Higher tensile strength and modulus of elasticity

Better compressive strength

Correct Answer: A

Question 9 of 147

At home bleaching treatments are MOST effective for:

Treatment of mild tetracycline discoloration.

Treatment of trauma induced staining.

Age-related discoloration.

Mild to dark surface staining.

Correct Answer: D

Question 10 of 147

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

Decreases in value.

Becomes more translucent.

Increases in value.

Increases in chroma.

Correct Answer: B