Loose teeth are particularly painful, mainly caused by periodontal abscess, alveolar abscess or dental trauma, requiring periodontal treatment, root canal treatment or loose teeth fixed treatment. 1. Periodontal abscess: Periodontal abscess will lead to swelling and pain in the gums overflow pus, and lead to periodontal tissues (such as alveolar bone) absorption and tooth loosening. Periodontal treatment and incision and drainage of abscess are required to effectively remove calculus, tartar and inflammatory secretions, etc., in order to effectively reduce swelling and relieve pain. 2. Alveolar abscess: that is, periapical abscess, which is caused by inflammatory substances in the root canal spreading to the periodontal tissues in the apical part of the root canal, thus causing symptoms such as tooth loosening or gingival swelling and pain, and it is necessary to carry out endodontic treatment to clean up the pulp tissues and inflammatory substances in the root canal to effectively relieve pain. 3. Dental trauma: it will lead to alveolar bone damage and loose teeth and pain and other symptoms, the need for loose teeth fixed treatment to relieve the above symptoms. Loose teeth pain, it is recommended to consult a doctor for a clear diagnosis and symptomatic treatment, in order to avoid delaying the condition.