Swollen gums and painful teeth may be due to wisdom tooth pericoronitis, alveolar abscesses and periodontal abscesses. Corresponding needs, do periodontal pocket rinsing followed by extraction, root canal or periodontal treatment. 1. Wisdom tooth pericoronitis. Wisdom tooth peri-coronitis teeth will have obvious gingival pockets around the teeth, periodontal tissue swelling and pain, due to the blockage of the wisdom teeth may appear adjacent teeth have spontaneous pain, diagnosis is generally used saline rinse gingival pockets iodine povidone, to be converted to the chronic phase after the consideration of the removal of the wisdom teeth. 2. Alveolar abscess. Alveolar abscess can be seen in severe apical periodontitis, the inflammation can not be drained, will break through the periosteum to reach the submucosa, the gums appear to be swollen and painful, the teeth have obvious occlusal pain knocking pain, the need for endodontic treatment, the establishment of pulpal access, fluctuating sensation of surgical incision and drainage. 3. Periodontal abscess. Can be seen in severe periodontitis, the teeth of the periodontal tissues are swollen overflow pus, when the root is exposed, the teeth will be sore, in severe cases, retrograde infection of the pulp can occur, causing tooth pain, general periodontal treatment, gingival cleaning, subgingival scraping and periodontal medication treatment. Swollen gums and tooth pain, it is recommended to go to the hospital in time to check and deal with, so as not to affect the work and life.