Key Concepts of Amalgam Cavity Design Quiz

1. Which of the following 'designing the cavity to resist displacement of the restorative material from lifting forces'?

Retention Form

Convenience Form

Final Form

Outline Form

Resistance Form

2. Which of the following 'allows the tooth and restorative material to withstand masticatory forces, down the long axis of the tooth'?

Retention Form

Final Form

Convenience Form

Resistance Form

Outline Form

3. What is the ideal cavosurface angle for an amalgam restoration?

90°

70°

100°

45°

40°

4. Which of the following is not a property of amalgam?

Contains mercury

Good wear resistance

High compressive strength

Brittle in thin sections

Adhesive

5. What is the minimum cavity depth required for amalgam?

1mm

2.5mm

0.5mm

2mm

1.5mm