aacd-American Academy of Cosmetic Dentistry Set 4

1.

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

2.

Which of the following is correct concerning tooth preparation for diastema closure with bonded porcelain restorations?

Keep all margins supragingival or equigingival Full crown preparations are best used to close spaces Subgingival interdental margins will allow for improved emergence profiles Mini-wings must always be used to close a black triangle interdentally

3.

What is the BEST property of condensible composites?

Lower filler content to allow lateral and vertical flow ensuring intimate contact Less stickiness and stiffer consistency and have a wear ratio similar to amalgam A filler loading of fibrous, porous, or irregular particles, and a filler percentage of 40% to 50% filled Clinical evidence of strength and polymerization shrinkage superior to conventional composites

4.

A white opacity near the incisal one-third of a permanent incisor is MOST likely the result of what?

Ingestion of excessive fluoride by the patient's mother during pregnancy Ingestion of excessive fluoride by the patient at the age of 1 - 3 years Antibiotic therapy by mother during pregnancy Trauma or infection of the patient's deciduous incisor

5.

The mucogingival esthetic problem which currently has the worst prognosis for successful correction is what?

Buccal root recession Thin attached gingival tissue Loss of interdental papilla Localized alveolar ridge defect

6.

When preparing for posterior porcelain to zirconia crown, the recommended occlusal reduction should be:

1.0 mm. 1.5 mm. 2.0 mm. 2.5 mm.

7.

Silane is indicated for which type of restoration?

Zirconia Alumina core based restoration Felspathic porcelains Any contaminated porcelain

8.

Of the following, which class of composites demonstrates the BEST physical and optical properties for both anterior and posterior composite restorations?

Microhybrids Nanohybrids Microfills Hybrids

9.

The masticatory muscle responsible for pulling the condyles forward is the:

masseter temporalis superior lateral pterygoid inferior lateral pterygoid

10.

When selecting a hybrid composite for a Class IV restoration, the MOST important factor to consider is the:

bond strength of the cured material. ability of the material to mimic the appearance of the tooth. surface area of the defect to be restored. surface hardness of the material related to occusal forces.

aacd-American Academy of Cosmetic Dentistry Set 4

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aacd-American Academy of Cosmetic Dentistry Set 4

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