The glass ceramic all-ceramic tooth has a beautiful color and a translucent effect, but the color shading effect and strength are slightly poor, which is more suitable for the restoration of a single crown or a short fixed bridge in the esthetic area of the anterior teeth. Alumina and zirconia all-ceramic teeth are strong, durable, and have good color shading effect, which are mainly suitable for the restoration of single crown and long fixed bridge in the posterior tooth area, as well as the restoration of severe discolored teeth and metal pile nuclei of anterior teeth. The full zirconium crown is mainly suitable for the functional area of the posterior teeth to restore the masticatory function.