It is estimated that about 92% of adults have fillings. When you get a cavity it is often fixed with a filling. The decayed portion is removed from the tooth and replaced with a filling material . There are a few options for the material used. Composite resin fillings are a similar color to the tooth. Amalgam (silver) filling material is another option.  The type of filling used is based on your needs and preferences. Talk to your dentist to see which would be the best fit for you.