There are three reasons for teeth to grow pockets: first, periodontal abscess. When oral hygiene conditions are poor, there is a large amount of dental calculus and plaque, it is possible to stimulate the gums to produce periodontal abscesses, and then the teeth will appear to have long dental bag. If there is a fluctuating feeling in the dental bag, it can be incised and drained, or oral anti-inflammatory drugs to promote subsidence, and then do periodontal treatment, you can carry out scaling and subgingival scraping, get rid of the local stimulating factors and then localized medication. Second, periapical abscess. If it is a periapical abscess caused by tooth bag, can be treated with anti-inflammatory drugs and then root canal treatment of the tooth, from the root canal of the tooth to promote the healing of periapical lesions, and then tightly filled. Third, the eruption of multiple teeth. If the patient has multiple teeth, there may be ectopic eruption, eruption may appear eruptive cysts, which will bulge the tooth bag, if there is a cyst, can be incised and drained, if the tooth is simply eruption, you can also choose to incise and extract.