Tooth filling, also known as dental filling, is a restorative procedure used to repair teeth damaged by decay, cracks, or wear. The dentist first removes the decayed portion of the tooth, then cleans the cavity and fills it with a suitable material such as amalgam, composite resin, ceramic, or gold. This restores the tooth’s shape, function, and strength while preventing further decay. Tooth-colored fillings are popular for their natural appearance. The process is quick, typically done in one visit, and helps preserve the natural tooth structure. Fillings are essential for maintaining oral health and preventing more serious dental issues.