Teeth with sufficient supporting tooth structure that have decay or are chipped or have minor cracks are restored with composite material (white fillings). If the remaining tooth structure is too weak to hold a filling or there is a significant crack, a crown will be advised. Most crowns at the The Leesburg Dentists are now done in zirconium for strength, aesthetics and biocompatibility. We do still use porcelain and gold at times, and there are times where an inlay or onlay may be recommended.