Dental socket closure is necessary to prevent the occurrence of dental caries can also prevent premature loss of teeth, to protect the permanent molar teeth, is a better preventive treatment. 1. Dental socket sealing can effectively prevent dental caries, is a non-invasive treatment, because the occlusal surface of the molar fossa is deeper, food debris is not easy to clean, the risk of dental caries is higher, this time you can do dental socket sealing for prevention. The sunken part of the occlusal surface of the molars is called the fossa. If the fossa is deeper, food is easy to be embedded and harbor bacteria, which makes it very easy for fossa caries to occur. 2. The deeper fossa on the occlusal surface of the newly erupted teeth can be closed with special materials such as resin or glass ionomer, which can effectively prevent the teeth from being eroded by bacteria and reduce the incidence of caries, and the fossa closure will not damage the dental tissues, and there are no side effects. Dental fossa sealing is a preventive treatment work, it is recommended to go to a professional organization for treatment, if there is any discomfort, see a doctor as soon as possible.