Porcelain veneers are thin porcelain restorations that are bonded to the lip and cheek surfaces of the teeth with little or no grinding, to restore the beauty and shape of the teeth. It is a good way to restore chipped teeth, stained teeth, discolored teeth or malformed teeth. However, if you do not pay attention to the operation standardization and process, the following risks may occur, as follows: 1, gingivitis: a common complication of veneer restoration, mainly caused by improper operation or the patient’s own reasons. Veneer repair neck edge treatment is extremely important, the neck edge should be designed in an easy to clean area, to the gingival edge of the most beneficial to gum health. Base tooth repair should be cured before the original gum inflammation, repair should master the dental health care methods, and regular review; 2, tooth sensitivity: porcelain veneer repair process, may cause mild tooth sensitivity, can be relieved on their own; 3, veneer fracture, fall off: porcelain veneers have chipped, the possibility of falling off, the need for timely medical care; 4, limited color shading: porcelain veneer color shading effect of its own is limited, the repair of the teeth of the larger color difference has a certain degree of difficulty. A certain degree of difficulty.