principles of tooth reduction part 1

define path of insertion

(a)  

line of insertion is used as a setup for a bridge restoration

• true
• false

It is single direction through which the restoration could be precisely seated on the prepared tooth.

• line of insertion
• common line of insertion
• range of insertion
• common range of insertion

Line of insertion is obtained by (a)   of opposing axial surfaces

Range of insertion is obtained by divergence of 2 opposing surfaces

• true
• false

the accepted taper angle in ceramic restoration

• 4-12˚
• 6-12
• 3-5
• 5-10

the accepted taper angle in full metal restoration

• 4-12
• 5-10
• 3-6
• 4-8

Accepted total convergence angle in ceramic restoration

(a)  

Accepted total convergence angle in full metal restoration

(a)  

Line of insertion is theoretical not clinical concept discuss

(a)