Porcelain veneers are suitable for the following symptoms: 1, to solve the tooth color problem: the previous tetracycline teeth in less serious tetracycline teeth, fluorosis or part of the coloring after the impact on the aesthetic teeth can be restored using veneers; 2, some patients with small dental deformities, dental development process is not normal into smaller teeth or shape is not very symmetrical, affecting the aesthetic, can consider veneers to restore the normal shape; 3, there is a slight defect: some patients have a slight loss of teeth, available veneers for repair.