When primary or permanent teeth develop dental caries (tooth decay), the decay must be removed and the shape and structure of the tooth must be restored. Dr. Lempert does not use any amalgam (silver fillings) at all. All teeth are restored using the finest quality tooth colored composite resin materials available. During this process, Dr. Lempert practices to the highest quality standards; she uses a rubber dam for restorative procedures whenever possible. The rubber dam isolates the tooth or teeth so that oral contaminants are prevented access to the operating field.