With the improvement of people’s living standards, people have higher and higher requirements for beauty, including having a beautiful smile and beautiful teeth. Porcelain teeth as the current international very advanced restorative technology, has been widely used in developed countries. It has a realistic and beautiful appearance, smooth surface, strong and wear-resistant, stable color, similar to natural teeth, will not be deformed, is a more ideal lifelong restoration. It is first made of metal base, and then covered with porcelain powder similar to natural teeth, sintered in a vacuum high-temperature firing furnace, so the porcelain crown has a high strength and aesthetic appearance. Porcelain teeth are biocompatible, do not irritate oral tissues, easy to clean characteristics. Porcelain teeth also have good marginal closure. Some patients may have such an experience, metal full crown restoration for a few years patients about ten years of tooth odor or pain, is because the denture crown and the real teeth are not close enough, saliva and food residue will seep into it, the real teeth will gradually erode, thus appearing denture odor, loosening and falling off, which is the result of poor denture edge closure. The production of porcelain teeth requires edge fit, 1mm below the gingiva, plus a special non-water-soluble bonding material, it ensures the edge seal. Porcelain teeth also have a wide range of indications and can be restored by porcelain for severe oral malocclusion, gaps, tetracycline teeth, fluorosis, malocclusion and various roots that cannot be filled. If your teeth are in good condition, the treatment time required is short and can generally be completed in two visits. Depending on the materials used, porcelain teeth can be divided into different types, such as non-precious metal porcelain teeth, titanium porcelain teeth. Nowadays, porcelain teeth made of gold, silver, platinum and other precious metals are more popular among the public. Precious metals are less irritating to the oral cavity, less toxic, and longer-lasting, making them the ideal material for “dental renovation”.