Loose teeth and pain are usually caused by trauma or periodontitis, the treatment methods are reset and fixed and periodontal treatment, as follows. 1. Repositioning and fixation: If the tooth is loose and painful due to trauma caused by tooth concussion or tooth dislocation, the tooth should be repositioned after local anesthesia, then ligated and fixed, with regular postoperative checkups, and if necrosis of the pulp is detected, root canal treatment should be carried out in time. 2. Periodontal treatment: periodontitis develops to the advanced stage of periodontal abscess will lead to tooth loosening, pain, should remove large pieces of tartar, rinse the periodontal pockets, when the pus is formed, incision and drainage, under local anesthesia to carry out a thorough subgingival debridement. If the tooth is loose and the pain symptoms are serious, it is recommended to go to the hospital in time, early formal treatment.