How Are Cavities Treated?
Cavities are treated in a number of different ways depending on the extent of tooth decay. If decay is not extensive, the decayed portion of the tooth is removed by drilling and replaced with a filling made of silver alloy, gold, porcelain, or a composite resin. Restorative materials used in fillings are considered safe. Concerns have been raised over the safety of mercury-based, silver amalgams in particular, but the ADA, FDA, and other public health agencies continue to support the safety of this restorative material. Allergies to silver amalgam are rare as are allergies to other restorative materials. If the decay is extensive and there is limited tooth structure remaining, crowns will be used. If a crown is needed, the decayed or weakened area of the tooth is removed and repaired and a crown is fitted over the remainder of the tooth. Crowns are made from gold, porcelain, or porcelain fused to metal. If the decay causes the nerve or pulp of the tooth to die, a root canal will be per
