OPERATIVE DENTISTRY TUTORIAL (YEAR 4 2024/2025)

1. 1. Which of the following is the most appropriate approach for managing a deep carious lesion with a vital pulp and signs of reversible pulpitis?

• A. Apexogenesis

• B. Full pulpotomy

• C. Stepwise excavation

• C. Stepwise excavation

2. Which statement best describes the function of calcium hydroxide in restorative procedures?

• A. It provides a durable restoration surface

• B. It improves esthetics of composite restorations

• C. It has a bactericidal effect under restorations

• D. It strengthens enamel

3. What combination of color characteristics is used in dental shade selection?

• A. Tint, brightness, and contrast

• B. Hue, chroma, and value

• C. Intensity, depth, and contrast

• D. Tint, gloss, and reflection

4. Which of the following contributes to mechanical retention in a Class II amalgam preparation?

• A. Occlusally divergent mesial and distal walls

• B. Sharp internal line angles

• C. Dentinal grooves or slots

• D. Convex pulpal floor

5. Which of the following is true regarding pit and fissure cavity outline form?

• A. All unsupported enamel should be retained.

• B. Initial depth should be 1.5 mm from the cavosurface margin.

• C. Cavities <0.5 mm apart should remain separate.

• C. Cavities <0.5 mm apart should remain separate.

6. 6. Which clinical condition can compromise both pulpal and periodontal health if not managed appropriately?

• A. Properly contoured subgingival margins

• B. Overhanging amalgam restorations

• C. Use of high-speed handpiece with water spray

• D. Liner placed in deep caries without violation of pulp

7. Which of the following is most commonly associated with clinical abrasion?

• A. High sugar diet

• B. Poor salivary flow

• C. Gingival recession

• D. Fluoride overexposure

8. Which of the following is a common indication for using dental amalgam?

• A. Highly esthetic anterior teeth

• B. Heavy occlusal loading

• C. Presence of shallow enamel lesions

• D. Need for minimal tooth preparation

9. Which feature enhances retention in an amalgam restoration?

• A. Rounded line angles

• B. Flat occlusal floor only

• C. Occlusally converging walls

• D. Lack of occlusal depth

10. According to the Determinants-Confounders model in caries development, which factor is a true determinant?

• A. Calculus

• B. Time

• C. Fluoride exposure

• D. Tartar