Principal of tooth preparation

Ch:7 rosentiel

Principal of tooth preparation

1. Biologic considerations: health of the oral

tissues.

2. Mechanical considerations: integrity and

durability of the restoration.

3. Esthetic considerations: appearance of the

patient.

• Adjacent teeth:

• Soft tissues

• Pulp of the tooth

• Extreme temperatures (speed, pressure, condition of the cutting

instrument)

• Chemical irritation

• Microorganisms

PULP

CONSERVATION OF TOOTH STRUCTURE

Esthetic restorations include :

Partial veneer crowns.

Metal-ceramic restorations.

All-ceramic restorations.