Teeth become longer need to actively seek medical examination to clarify the causes, such as periodontitis, dental trauma, malocclusion, etc., according to the different causes were used in periodontal treatment, crown restoration, orthodontic treatment, reset and fixation to restore, restore. 1. Periodontitis: Periodontitis is a chronic inflammation that occurs in the periodontal tissues, and in the late stage, symptoms such as loosening, shifting and lengthening of teeth can occur. The first treatment is periodontal treatment, including scaling, scraping, local medication and other basic periodontal treatment, as well as flap surgery, bone grafting and other periodontal surgical treatments; after periodontal inflammation is controlled, the teeth can be further restored to their aesthetic appearance through crown restoration and orthodontic treatment. 2. Dental trauma: Dental trauma can cause semi-dislocation of the teeth, i.e. the teeth become longer and other symptoms. Treatment requires active medical treatment to reset and fix the tooth, and if necessary, root canal treatment and crown restoration. 3. Malocclusion: If the teeth themselves have malocclusion, and there are different lengths of the teeth, irregularities and other phenomena, you need to actively seek orthodontic treatment to improve. Therefore, if you have long teeth, it is recommended that you consult a doctor to find out the cause of the problem and have it treated accordingly.