What is a dental filling?

A dental filling, also known as a cavity filling, is a dental treatment used to restore a tooth that has been damaged by decay. The filling material is placed in the tooth to replace the decayed portion and protect the tooth from further damage.

Dental fillings are typically made from a variety of materials, including:

* Gold: Gold fillings are highly durable and can last for many years. However, they are also the most expensive type of filling.

* Silver amalgam: Silver amalgam fillings are made from a mixture of mercury, silver, copper, and tin. They are strong and durable, but they are not as aesthetically pleasing as gold or composite resin fillings.

* Composite resin: Composite resin fillings are made from a mixture of plastic and glass particles. They are tooth-colored and can be used to match the natural color of your teeth. Composite resin fillings are less durable than gold or silver amalgam fillings, but they are more aesthetically pleasing.

* Glass ionomer: Glass ionomer fillings are made from a mixture of glass and acrylic. They are tooth-colored and can be used to match the natural color of your teeth. Glass ionomer fillings are less durable than gold, silver amalgam, or composite resin fillings, but they are more biocompatible and can help to prevent further tooth decay.

The type of filling that is best for you will depend on the extent of the damage to your tooth, your budget, and your personal preferences. Your dentist can help you choose the best filling material for your needs.