Loose incisors can be caused by apical periodontitis, periodontitis, and trauma, etc. Depending on the situation, incision and drainage, scraping, and ligature fixation should be taken to make it firm. 1. Periapical inflammation: the stimulation of inflammation leads to the emergence of internal abscess, which causes the loosening of the incisors, you need to make an incision and drain the internal pus in a timely manner to drain out the pus, remove the infected pulp, and then disinfect and fill, and when the condition improves, the loosening will disappear naturally. 2. Periodontitis: When periodontitis is severe, periodontal pockets will be formed, and it is necessary to remove the stones and granulation tissues on the teeth in time, and at the same time, use hydrogen peroxide to rinse, and place minocycline to promote the generation of tissues in order to improve the problem of loosening of teeth. 3. Trauma: If the tooth is loose due to trauma, it should be treated in conjunction with the loosening condition. Minor loosening does not require special treatment, reduce the number of times the teeth are used, and slowly can be restored; if the loosening is more obvious, it is necessary to be treated through a single jaw ligature fixation. The causes of loose incisors are complex, and it is recommended that you follow your doctor’s instructions and take targeted treatment according to the cause of the problem.