Ceramic Veneer

Question 1

Where should a bevel be placed?

Answer 1

On incisal edge
45 degree angle to long axis of tooth
Not aiming to shorten tooth

Question 2

How should the labial surface by prepared initially?

Answer 2

Depth dimples should be placed using round bur

These should be 0.4-0.5mm deep (stay within the enamel)

Question 3

How many planes does labial surface have?

Answer 3

2 planes: cervical and incisal

Question 4

How to reduce labial surface?

Answer 4

Use round ended tapered bur e.g 501- create smooth chamfer at periphery
Reduce in two planes until dimples have been reduced evenly

Question 5

Why is a rounded chamfer margin advantageous?

Answer 5

Reduce stress at periphery

Question 6

How should the contacts be prepared?

Answer 6

On labial surface reduce and take margin to contact points but do not break
However margins need to be tucked into embrasure (need to take more palatal)

Question 7

Why do margins need to be tucked?

Answer 7

Would see junction between veneer and tooth

Question 8

How should a veneer prep be temporised?

Answer 8

Temporary made via bulk placement of composite using spot etch technique
DO NOT USE DENTINE BONDING AGENT

Question 9

How can temporary veneer preps be removed?

Answer 9

As only spot etched - can use excavator at margin to flick temp off
If composite remains at spot etch can use bur to plane away