White dental fillings are made of acrylic resin that matches the color of a person's teeth and are used to fill cavities and repair damaged or misshapen teeth. They are a popular alternative to amalgam or metal fillings because they provide a more natural appearance. Before receiving white fillings, a dentist will examine the teeth to determine if they are suitable. The procedure involves numbing the area with anesthesia before removing any decay and filling the cavity with resin composite or porcelain materials. White fillings can effectively treat cavities while providing strength to teeth, but they may not last as long as other options like porcelain. Their durability depends on factors like eating habits and dental hygiene.