Anatomically speaking, the crown itself is the crown of normal natural teeth. From the point of view of prosthodontics, the crown refers to the denture covering, which protects the residual teeth. Crown, also known as artificial crown, protective crown and braces, is a method to repair teeth.

Classification of crown materials

Metal crowns: ceramic crowns such as drill chrome, nickel chrome, pure bowl and gold alloy: drill chrome porcelain, nickel chrome porcelain, gold alloy porcelain and pure bowl porcelain.

Morphological classification of dental crowns

Veneer:

Veneering is to stick a layer on the surface of teeth, which requires grinding off a thin layer of tooth tissue and sticking it on the surface, called veneering. Inlay: Inlay is a method to repair some tooth defects, and the number of molars is very small.

Full crown species

Metal crown: porcelain crown with high strength but poor aesthetics: the inner layer is metal and the outer layer is porcelain with poor air permeability and easy to collapse.