Fillings provide durability and protection against fractures in teeth that have suffered from decay or cavities. Fillings have the ability to repair the damage decay has done on a tooth by filling the spaces or holes the decay causes; this allows the weakened tooth to last longer and remains functional for regular eating and speaking.
Fillings come in a variety of materials, but the two most common types of fillings are composite resins and amalgam fillings. Composite resins, or tooth-colored, fillings are used in smaller to mid-size fillings and are a popular choice because they match the color of your natural teeth. Composite resins are bonded to the existing tooth structure to help strengthen it.
There are other kinds of fillings that are usually considered a separate treatment, known as inlays and onlays. These types of fillings are more often used for more severe cases of decay when fillings are not enough to fully support the tooth because the damage is more extensive.