Fillings are a very important treatment for tooth defects, such as decay. If you want to have the best results, you can now choose light-curing resin for the repair of fillings. The light-curing resin is different from the traditional cementitious material, it has a light initiator involved in the material of the filling, and the material is cured by the irradiation of ultraviolet light. Before filling, the cavity also needs to be routinely decayed. If the cavity is deeper, a conventional bedding treatment is needed, which can be better by applying light-curing calcium hydroxide for bedding. After the bedding, you need to apply the bonding agent, and after the application of the bonding agent, you can start the light treatment, usually in about 20 seconds, after which you can fill the flowing resin on top, perform the light treatment for 20 seconds, and then add the resin material for light treatment. Finally, after the end of filling, local jaw adjustment and polishing can be carried out. Resin-based materials are particularly realistic in form and color, similar to the form and color of natural teeth, and are now more widely used.