I had my zirconia crown fitted for the upper four incisor teeth 3 weeks ago in Turkey. One of the tooth chipped and the other one is broken within a week. The dentist sent me another set of crowns along with my mould from Turkey, to get it fitted in UK. The dentist in UK told me that these crowns cannot be used as all the fitted four crowns and the new crowns to be fitted are bridged (made as a single unit). In UK, they fit zircon crowns for individual tooth. Please advice. Thank you