Many loose teeth can be caused by external impact, periodontitis, apical periodontitis, etc. They are mainly treated by medication and surgery. 1. External impact: Teeth can be loosened when they are bumped or bruised. If the symptoms are not serious, there is no need for treatment, and the tooth will grow strong on its own after a period of time. If the tooth is loose, broken, lost, etc., it is recommended that the tooth fixed surgery or dental implants. 2. Periapical inflammation: If the inflammation spreads to the periapical tissues, it will cause tooth loosening, and root canal treatment is needed, and oral medicines including cefadroxil, cefixime, metronidazole, etc. can be taken as prescribed by the doctor at the same time. 3. Periodontitis: this type of patients due to the periodontal membrane and periodontal ligament inflammatory reaction, which can cause different degrees of tooth loosening. Periodontal systemic treatment is needed to control inflammation, and can be used with chlorhexidine gargle. There are other causes of loose teeth, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication.