For over 150 years, cavities were filled with a mixture of metals, including silver and mercury. It was perfectly normal to see dark grey areas in someone’s mouth when they laughed.
But today cavities, as well as any other smaller hollow areas in teeth, can be filled with composite fillings.
Composite fillings are made from resins that are matched to the exact tooth color, so it blends in with dental enamel.
Composite fillings also provide minimal tooth removal and an excellent seal on the affected area, so that tooth decay can be prevented.