Zirconia all-porcelain dentistry is a high-tech cosmetic restorative dentistry method in recent years, which has an inner crown with a clear bracket, and a layer of porcelain powder similar in color to natural teeth is applied on the outside of the inner crown and finally bonded to the teeth. The indications for zirconia all-porcelain teeth are oral teeth irregularities, gaps, tetracycline teeth, fluorosis, malocclusion, remnant crowns, remnant roots, etc. are restored by all-porcelain teeth. The advantages of zirconia all-porcelain teeth: 1, zirconia is a biological material, biocompatible, no irritation to the gums, no allergic reaction, to avoid metal materials in the oral cavity produced by allergies, irritation, corrosion and other adverse reactions. 2, the inner crown of zirconia all-porcelain teeth is white, will not gums darken, darken and green, solving the most difficult problem of metal porcelain crowns. 3, zirconia all-porcelain teeth have the best aesthetic ornamental effect, under any lighting can show the best beauty of the teeth, will not reveal the color of the tooth base. 4, zirconia all-porcelain teeth will not affect the imaging of cranial x-ray, CT, MRI examination because they do not contain metal porcelain crowns. Zirconia all-porcelain teeth will become the future trend of cosmetic dental restoration.