Fillings restore teeth damaged by decay, fracture or erosion. After removing decay and cleaning the affected area, dentists usually fill the cavity with composite resin. Amalgam is rarely used as a restorative material, but it remains an option in some cases. These materials restore the tooth's shape and function. Fillings help prevent further decay, enhance oral health, and maintain the tooth's natural appearance. Regular dental check-ups ensure timely detection and treatment of decay, promoting overall dental well-being.