DENTAL NOTES ON CAVITY PREPARATION IN OPERATIVE DENTISTRY

IMPORTANT VIVA QUESTIONS CONTD...

Q1. What is meant by establishing outline form?

Ans:  Establishing outline form means:

• Placing the preparation margins in the positions they will occupy in the final preparation for finishing enamel walls and margins
• Preparing an initial depth of 0.2-0.8mm pulpally of the DEJ

Q2. What are the factors determining the outline form?

Ans: 

1. Extent of carious lesion
2. Faulty old restoration
3. Aesthetic consideration
4. Occlusal conditioning such as stress bearing areas
5. Contact with adjacent tooth and its contour
6. Desired cavosurface margin for the specified restoration