Dental crowns are used to cover a tooth or a dental implant. Dental crowns are often recommended to strengthen a weak or broken tooth or to mask a discoloured or worn off tooth. Zirconium crown is a metal free tooth coloured crown made of zirconium dioxide which is a highly durable material. Zirconium is clinically proven metal free ceramics which is bio-compatible and aesthetic. Metal free ceramic restorations do