Resin teeth have the advantages of easy operation, beauty, durability and wide applicability. 1. Convenient operation: it can be operated directly in the mouth, which saves patients’ consultation time. 2. Aesthetics: The color and texture of resin teeth are similar to normal teeth, so there will not be much difference between the restored teeth and other teeth, and it looks very natural and almost impossible to see the difference, so it is especially suitable for people who pay attention to appearance. 3. Durable: the adhesion between resin and enamel is relatively strong, and the adhesion with enamel is firm, and it is not easy to fall off after restoration; the degree of hardness is relatively high, and it is generally not easy to appear fracture. 4. Wide applicability: the use of resin fillings to repair more cases, the scope of application is extremely wide. It can be used to repair many kinds of defects of the teeth, for example, it can be used for filling and repairing various situations such as cushioning, fossa sealing, melon teeth, and gap between teeth. Try to avoid eating hard or unchewable food within two days after having resin fillings to prevent the resin from falling off and being damaged.