These fillings are also referred to as white fillings, or bondings. Sometimes a tooth needs a filling either because of a new cavity forming or an old filling that has failed. At Eastpoint Dental, we use highly esthetic composite resin as our filling material of choice. We have moved away from traditional, mercury containing, Amalgam (silver) fillings for several reasons. Composite comes in a variety of shades and has the ability to blend into the tooth. Composite also has the property of bonding to the tooth on a microscopic level. This seal is not only more resistant to leakage, it strengthens the entire tooth making it less prone to fracturing.