A clean cavity prep is a must! Amalgam fillings can break the tooth by making in…

A clean cavity prep is a must! Amalgam fillings can break the tooth by making internal and external fracture lines into the enamel and into the dentin. This is due to the high expansion and contraction properties of the amalgam. In this case you can see the mesial fracture line under the old leaking amalgam restoration. The large deep caries was removed using carbide round burs with a slow speed handpiece. A Vitrebond liner was placed and the tooth was restored conservatively using Estelite comp