Teeth are very loose but can not fall off, it is recommended to go to the hospital in time to check whether the teeth can be retained, can not be retained as soon as possible extraction, can be retained recommended to do root canal treatment or periodontal treatment. 1. Early extraction. If the teeth are very loose but cannot fall down, if they are 3 degrees loose after checking in the hospital and the prognosis is not good, it is generally recommended to have them surgically extracted and then prosthetically repaired. 2. Treatment and retention. Teeth are very loose but can not fall down may also be due to periodontal inflammation or apical periodontitis caused by tooth loosening, to the hospital for examination according to the situation of periodontitis caused by loosening can be restored through periodontal treatment to restore stability, caused by apical periodontitis can be considered endodontic treatment, to eliminate the inflammation of the teeth after the restoration of stability. The teeth are very loose but can not fall down, it is recommended to go to the hospital for oral examination and X-ray examination to determine the treatment plan.