How many years can the tooth last after blocking, need specific analysis of specific problems, the specific use of the years and the following aspects are related: 1, the degree of tooth loss. If the tooth loss is relatively small, after the application of filling materials for repair, generally 8-10 years are no problem. However, if the tooth loss is particularly large, even up to 2/3 or more, the filling material is very likely to fall off when chewing and may need to be refilled in about 2-3 years. 2, whether the tooth has undergone root canal treatment. Generally, teeth without root canal treatment can be used for a longer period of time after plugging, and there is no problem in about 5-6 years. However, if the tooth has undergone root canal treatment, and then the tooth is plugged above, and no crown restoration is done, there is a possibility that the tooth will split when chewing hard food, and it is likely that the tooth will be destroyed within 1-2 years, and crown restoration treatment is needed.