What is a Filling?
Fillings are synthetic materials that are used to restore a portion of a tooth damaged by decay or traumatic injury. There are different types of materials used to fill cavities, including composite, porcelain inlays or onlays and metal alloys.
- Composite fillings - As stated, composite fillings are just what the name implies: a mixture of resins and fine particles designed to mimic the color of natural teeth. Composite fillings provide a pleasing aesthetic alternative. Sometimes composite resins need to be cemented or bonded to a tooth to allow for better adhesion.
- Porcelain (ceramic) - These materials are usually a combination of porcelain, glass powder, and ceramic. Candidates for porcelain fillings are typically crowns, veneers, and onlays and inlays. Unlike ionomers, porcelain fillings are more durable, but can become fractured if exposed to prolonged biting pressures.