There are three methods of dental restoration, including filling treatment, inlay restoration and full crown restoration. 1. Filling treatment: It is also called filling in daily life, including composite resin, silver amalgam, glass ion filling and other ways. When a tooth is chipped or a part of the tooth is damaged by caries, a cavity appears on the surface of the tooth and needs to be filled. Composite resin fillings are most commonly used clinically, and after filling, the color of the tooth is close to that of a normal tooth, and the price is lower. Filling treatment can only be used to fill a small area of caries. 2. Inlay restoration: Inlay restoration is an ideal restoration method, which can not only repair small caries cavities, but also have a better restoration function for the missing teeth with a large area, and can maintain the physiological function and anatomical shape of the teeth. 3. Full crown restoration: due to the emergence of caries untimely treatment, resulting in the development of endodontitis, the need for endodontic surgery, root canal treatment after the full crown restoration. If the area of crown damage is large, full crown restoration is also needed to protect the tooth from splitting and crown fracture. Patients with dental problems are advised to seek timely medical treatment, complete relevant examinations, clarify the condition, and choose the appropriate treatment under the guidance of the doctor to avoid adverse consequences.