Dental veneers can be divided into resin veneers and porcelain veneers, depending on the material used for restoration. Veneers can be used to solve dental defects, large gaps, misalignment, and tooth staining. Regardless of the problem, the final effect of porcelain veneers or resin veneers can achieve the degree of fakeness, and has the characteristics of minimally invasive, lasting effect. However, for some teeth that are particularly dark, such as moderate and severe tetracycline teeth, porcelain veneers can be less effective, and can be an alternative treatment if the patient’s requirements are relatively low. As people’s awareness increases, more and more patients visit the hospital, and patients gradually agree that this minimally invasive, aesthetic and long-lasting restoration is also the main treatment means for aesthetic restoration of teeth at present.