Nearly all fillings used to be made from metals like gold or silver because of their durability. However, many people don’t like how conspicuous they are in the mouth, leading to the development of other types of filling materials that create a more natural look.
Based on the size of your cavity, the location, and your budget, your dentist will be able to help you decide on the best material for you, with options like:
Metal Amalgams
Metal fillings, while the most noticeable, are also the most durable. Silver fillings typically last between 10 and 15 years, while gold fillings can last a lifetime. Because these metals are so easy to see in the mouth, though, they are typically chosen as a filling for back teeth, which are harder to see when you smile. Typically, metal amalgams are also the cheapest option, adding to their allure. With the exception of gold and silver fillings, most metal amalgams are a blend of several metals.
Composite Resin
A composite resin is a filling made from a specialized epoxy material like ceramic or silica. These are a popular choice for front teeth or other visible areas because they can be specially colored to blend in with the natural color of your tooth. Another benefit of a composite filling is that your dentist won’t have to remove as much of the original tooth before filling it in. Because of this, they typically work better for larger cavities. However, composite resin fillings may need to be replaced every ten years or sooner, unlike metal amalgams.
Porcelain
Also known as inlays, porcelain fillings are the most expensive filling options; however, they last longer than composite resin fillings. Typically, dentists use inlays for worn-down teeth rather than for treating a cavity.