A filling is a substance that dentists use to replace a decayed or broken portion of a tooth. Commonly used substances for fillings include metal, alloy, plastic, porcelain, or a combination of materials (composite).
Composite resins are made from plastic materials (glass and resin) and are usually similar to tooth color. They are often used on the front teeth where a natural appearance is important. Composite resins can sometimes also be used on the back teeth.
Last Revised: June 14, 2011
Author: Healthwise Staff
Medical Review: Kathleen Romito, MD - Family Medicine & Steven K. Patterson, BS, DDS, MPH - Dentistry
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