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 colour. 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.

Current as of: May 12, 2017

Author: Healthwise Staff

Medical Review: Adam Husney, MD - Family Medicine & Anne C. Poinier, MD - Internal Medicine & Martin J. Gabica, MD - Family Medicine & Steven K. Patterson, BS, DDS, MPH - Dentistry & Arden G. Christen, DDS, MSD, MA, FACD - Dentistry