Denture restoration is an elegant and beautiful method of tooth restoration. A layer of tooth surface is ground off, and then it is directly or indirectly covered with restoration materials to restore the tooth shape and improve the color. The following oral plastic surgery experts from Liang Ya will give you a detailed explanation. Veneer has been around for half a century. Hollywood actors used porcelain veneers to cover discolored front teeth 50 years ago, but the problem of adhesion could not be solved at that time, so they could only use them temporarily during filming. At that time, porcelain veneers were not made in a vacuum porcelain furnace, but were fired in the atmosphere. Later, after several years of research, it was reported in 1982 that the porcelain surface was treated with hydrofluoric acid and then the porcelain veneer was bonded by etching-bonding technology, and the bonding effect was obviously improved. Nowadays, veneering has become a common means of tooth beauty. According to the different materials used, it can be divided into two categories: resin veneer and porcelain veneer. Because of its low price and simple technology, resin veneer is still being done by doctors in the world. However, due to the loose structure of resin, it is very easy to dye and change color, and it cannot maintain a good appearance for a long time. The color of resin material is single, and the visual effect after treatment is not vivid and dull. In addition, resin veneer can easily cause gum irritation, cause gum inflammation and redness, and form iatrogenic gingivitis. Because resin needs to corrode teeth in the bonding process, it is easy to cause chemical stimulation to dental pulp. Therefore, the application of resin veneer repair technology is less. Porcelain veneer still has many advantages. Less grinding, beautiful color, can choose at will. Because of the dense texture of porcelain, there will be no dyeing and coloring. Porcelain veneer has high manufacturing accuracy and good biocompatibility, and it is not easy to cause gingival swelling. However, due to its own structure, porcelain veneers are only suitable for changing the color of front teeth. If there are abnormalities in the position and shape of teeth at the same time, porcelain veneers are not suitable for restoration. In addition, the bonding area between porcelain veneers and teeth is limited, and the firmness is not high, which may fall off in the later stage. more