Does the definition of cosmetic dentistryImprove the teeth, jaw and facial location and symmetric treatment, skills and technology, to improve much more of the structure and function, especially pay attention to the color and shape of the teeth.We call this a dental emerging field of cosmetic dental.Does the cosmetic dental categoryCosmetic dental range is very wide, can be roughly divided into three major projects:(1) cosmetic repair aspect: it contains all ceramic crowns, porcelain veneers, porcelain inlay...And so on.(2) plastic periodontal gums aspects: it contains gingival hyperplasia resection surgery, alveolar bone repair...And so on.(3) the teeth whitening: it contains whitening, cold light whitening, laser whitening that occupy the home...And so on.