G.V Black Cavity Preparation

Question 1

The form of the cavity peeped depends on what factors

Answer 1

• Extent of the caries
• Proximity of the caries to the enamel pits and grooves
• Approximating and opposing teeth
• Soft tissue
• Esthetics
• Restorative material

Question 2

What is “resistance form”

Answer 2

Shape and placement of the cavity walls that best enable the restoration to resist displacement through tipping and lifting forces

Question 3

What is a “convince form”

Answer 3

Shape of the cavity that allows for adequate observation, accessibility and ease of operation in preparing and restoring the cavity

Question 4

Describe the shape of pit and fissure caries that penetrate the enamel and dentin

Answer 4

Enamel= pyramid on top of dentin= upside-down pyramid

Question 5

Describe the shape of smooth surface caries that penetrate the enamel and dentin

Answer 5

Enamel= Upside down pyramid on top of dentin= upside down pyramid

Question 6

Pit and fissure lesions are Blacks Class __ caries

Answer 6

I

Question 7

Smooth surface lesions are Black’s Class(es) caries

Answer 7

II, III, IV, V

Question 8

Who coined the idea extension for prevention

Answer 8

G.V Black

Question 9

What is extension for prevention

Answer 9

Preparation of all pits and grooves (not just the carious ones to prevent fracture of the tooth and future caries in those regions