Hii, there are multiple manufacturers for zirconia crown material. It comes in a lot of varients depending upon the purpose it is being used for,whether esthetic or masticatory. For front teeth and back teeth it's different. Bruxzir and bruxcare are 2 types of zirconia crowns which are usually given for back teeth when the remaining tooth structure(height and width) is less because of decay after root canal treatment or as a part of multiple rehabilitation. The choice of crown depends upon various other factors also.

Hi, Bruxair zirconia we will suggest only when there is little tooth structure left after shaping of teeth. There are zirconia crown that will comes with warranty period starting from 5 years to 25 years n more..