Composite resin is a new type of dental restorative material consisting of a polymer compound plus a treated inorganic filler. Nowadays, light-curing composite resin restorative materials are commonly used in clinical practice, which are widely used in the treatment of restoration of anterior teeth due to the following advantages of this material. 1, color and tone color and natural tooth color is very close, and there are a variety of types, according to the patient’s tooth color, skin color, etc. to select the most suitable material for restoration. 2.Plasticity The light-curing composite resin is a single paste agent type, which has a long plasticity before irradiation by the light source, and it can be trimmed to any shape until it is satisfied, and then irradiated by the light source to make it solidified. 3.Polishable The ultra-micro filler particles of the light-curing resin are fine, so it can be polished, and basically does not change color, however, there is a possibility of being stained. However, traditional composite resin is easy to be stained due to coarse filler particles. Therefore, after filling teeth with composite resin material, you should try to drink less strong tea, smoke, and eat less deeply pigmented food, such as soy sauce and black vinegar.