In the past, teeth were filled with a mixture of different metals. These are called amalgam fillings. Today that is changing as more natural-looking and metal-free fillings are becoming the preferred approach.
Dentists are using more tooth-like materials that are both safe and predictable. The most important feature, for many people, is that they look and react more like natural teeth.
Composite Resin Fillings
Composite resin fillings are made of ceramic and plastic compounds. Because resins mimic the appearance of natural teeth, these fillings have been used in front teeth for years. Composite resins, or tooth-colored fillings, provide good durability and resistance in small- to mid-size fillings that need to withstand moderate pressure from the constant stress of chewing. They can be used on either front or back teeth. They are a good choice for people who prefer that their fillings look more natural.