A dental filling is a method used to restore a tooth damaged by decay back to its normal function and shape. When performing a filling, your dentist first removes the decayed tooth tissue, cleans the affected area, and then fills the cavity with a filling material. This seals the spaces where bacteria can enter and helps prevent further decay.
Materials used for fillings include gold, porcelain, composite resin (tooth-colored fillings), and amalgam (an alloy of mercury, silver, copper, tin, and sometimes zinc).

Which Type of Filling Is Best?

The same type of filling may not be suitable for everyone. The right filling for you will depend on the extent of the decay, any allergies to certain materials, the location of the filling, and cost considerations.

Considerations for Different Material Types:

• Gold fillings are custom-made in a laboratory. They tolerate gum tissues well but are among the most expensive options and require multiple visits.
• Amalgam (silver) fillings are corrosion-resistant and relatively inexpensive. However, due to their dark color, they are more noticeable than porcelain or composite restorations and are not suitable for front teeth.
• Composite fillings are tooth-colored and offer a natural appearance. However, they may chip or wear over time. They are not ideal for large restorations and can stain from tea, coffee, or tobacco.