Swollen and painful gums lead to loose teeth may be periodontitis, apical periodontitis, etc., the corresponding treatment is mainly periodontal treatment, root canal treatment, extraction, etc.. 1. Periodontal treatment: periodontitis can cause swollen and painful gums, loose teeth, mainly for periodontal treatment. If it is in the acute stage, such as a periodontal abscess, it can be punctured and drained first, and then systematic periodontal treatment can be carried out. 2. Root canal treatment: apical periodontitis will appear gum swelling and pain, tooth loosening, usually tooth loosening can be relieved after the acute stage. The main treatment is root canal therapy. 3. Extraction: If the tooth cannot be retained, it can be extracted. Swollen and painful gums lead to tooth loosening recommend timely access to the hospital, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.