The leakage of a hole in the tooth is usually related to caries, trauma, acid erosion, wedge-shaped defects, etc. Its treatment needs to be based on the specific cause of the treatment, such as the common methods of regular follow-up, filling and restoration, root canal treatment, extraction of the affected tooth, and so on. 1. Caries: Caries causes holes in the teeth, which are usually treated according to the degree of dental defects. If the damage is relatively minor, filling and restoration can be performed. If it is accompanied by periapical disease of the pulp or exposed nerve, it can be treated by root canal therapy. 2. Trauma: The degree of tooth loss caused by trauma is not serious and does not affect the aesthetics and chewing can be sharpened by grinding the edges. If the degree of tooth loss is more serious, it is necessary to carry out surgical restoration treatment, such as the use of composite resin, inlays or full crown to repair the shape of the crown. If the tooth is missing too much, resulting in exposure of the pulp, you can do live pulp cutting or root canal treatment. 3. Acid erosion: Acid erosion can be desensitized when the degree of tooth loss is relatively mild. If the tooth loss is serious, filling and restoration can be used. If accompanied by periapical lesions of the pulp, root canal treatment is usually performed. 4. Wedge-shaped defects: wedge-shaped defects in the usual way to correct brushing method, avoid using a lot of acidic food and other bad habits; tooth loss is relatively light can be the first regular follow-up observation; if the tooth is missing a large tooth can be filled restoration; accompanied by the pulp periapical disease or the tooth transverse fracture of the tooth can be root canal treatment or extraction of the affected tooth. When a hole appears in the tooth, it is necessary to go to the hospital in time to check the specific cause and degree and timely treatment to avoid delaying the condition.