module 5 restorative dentistry. the aims of restorative dentistry to restore teeth and gums to...

Module 5

Restorative Dentistry

The Aims of Restorative Dentistry

• To restore teeth and gums• To prevent the advance of caries

and periodontal diseases• To restore oral tissues to function,

comfort and aesthetically satisfactory appearance

Restorative Materials – Qualities Required

• Easy to mix and handle• Biocompatible• Good adhesion to dentine and enamel• Good adhesion to porcelain and metals• High compressive strength• Low film thickness• Adequate working time• Fast final set

Tooth Preparation

1. Caries removal• Minimal intervention• Endodontics• Cores & posts

2. Rubber Dam

3. Lining the cavity

Amalgam

• Silver tin alloy + mercury– Mercury hazard

• Procedure for placing a filling• Advantages• Disadvantages

Composite Filling Materials• Filler particles + resin + catalyst

• Classification

• Procedure for placing a filling

• Advantages

• Disadvantages

Glass Ionomer Cements

• Alumino silicates + polyacrylic acid– Auto-cured GIC– Light cured resin reinforced GIC– Silver reinforced GIC– Fissure sealants

• Uses• Advantages• Disadvantages