45-year-old incisors loose shaking may be periodontitis, caries, trauma and other causes, generally can not be self-healing, need to target to take treatment. 1. Periodontitis: often plaque bacteria invade the periodontal tissues caused by a chronic inflammation, which can lead to loose teeth, acute stage of pus formation, need to be cut and drained. The tartar can be carried out on the gingival scaling or subgingival scraping, and with antibiotic medication, such as metronidazole, tinidazole, cefixime and so on. 2. Dental caries: may be more serious caries, resulting in the root area of the block generally can not be restored need to be extracted, and then choose a fixed denture or dental implants. 3. Trauma: may be caused by trauma impact, if the teeth loose is not serious general fixed treatment, will gradually recover. 45 years old incisors loose shaking may also be caused by other reasons, but generally can not be restored on their own, the need for timely consultation, a clear diagnosis with the doctor for treatment, the use of drugs need to follow the doctor’s instructions.