A dental filling is a type of restorative dentistry treatment used to repair minimal tooth fractures, tooth decay or otherwise damaged surfaces of the teeth. Dental filling materials, which include composite, porcelain and silver amalgam, may be used to even out tooth surfaces for better biting or chewing.

Enamel loss is a common component of tooth decay, and may result in tooth sensitivity. In many cases, tooth sensitivity caused by enamel loss will be significantly improved or completely eliminated once an appropriate dental filling material is placed.