There are a variety of materials that can be used to replace tooth structure lost by decay or fracture. 
Fillings are placed directly into the hole inside the tooth and are also known as ‘direct restorations’.

Examples of common filling materials are

Amalgam – a silver based filling material that is alloyed with mercury.

Composite – a plastic based filling material

Glass Ionomer – a silicate based filling material

We will be happy to discuss with you the advantages and disadvantages of different materials for your particular needs. 

When there is a lot of tooth structure missing, the remaining small amount of tooth  can be very weak.  It may be better to cover the weakened part of the tooth to protect and prevent further breakage. These are called cusp covered restorations and can be done directly into the mouth with ordinary filling materials.