Restorative materials are used to repair teeth, which have been compromised due to tooth decay (cavities) or trauma. Your dentist may use several methods to determine if you have tooth decay such as cavity detecting dye, x-rays and laser fluorescence cavity detection aids. Tooth trauma can be caused by cracked or broken teeth, teeth that are worn from unusual use such as nail biting, tooth grinding (bruxism) and using your teeth to open things. Different materials can be used to repair teeth, the most common being composite fillings made from a tooth-colored resin which looks and feels like natural teeth. Ask your dentist what material is best for you and your specific needs. - See more at: http://www.diloretodental.com/2012/12/six-most-common-dental-procedures/#sthash.2HH0YnSx.dpuf