Large teeth generally refers to molar teeth, molar teeth, the innermost gums swollen and painful to consider and gingivitis, acute gingivopapillitis, apical periapical inflammation, wisdom teeth pericoronitis, etc., can follow the doctor’s instructions to use medication or local treatment. 1. Gingivitis: caused by tartar, plaque, can follow the doctor’s instructions for scaling treatment to eliminate local stimulation of the gums, relieve the phenomenon of swelling and pain. Part of the gingivitis is serious, but also with 1% ~ 3% hydrogen peroxide solution rinse gingival sulcus, and 0.12% ~ 0.2% chlorhexidine with gargling. 2. Acute gingival papillitis: patients also need to remove plaque and tartar from the neighboring surfaces through scaling, and can also use local antibacterial and anti-inflammatory drugs, such as 1% to 3% hydrogen peroxide liquid rinse. After the acute inflammation subsides, the patient will cooperate with the doctor to fill the neighboring caries and modify the defective restorations. 3. Periapical inflammation: In the acute stage of periapical inflammation, patients need to cooperate with the doctor to open the pulp drainage, incision and drainage of pus, and adjust the grinding reform and other therapeutic measures, accompanied by pain can be used to ibuprofen, diclofenac sodium and other non-steroidal anti-inflammatory drugs. Those with clear bacterial infection can follow the doctor’s prescription of metronidazole, tinidazole and other antibiotic treatment. Part of the serious condition of the feasibility of root canal surgery, endodontic blood flow reconstruction. 4. Wisdom tooth pericoronitis: blind pocket rinsing, medication, with metronidazole, cefixime and other systemic treatments, consider removing the wisdom teeth after the inflammation subsides. It is recommended that people with swollen and painful gums in the innermost molar teeth should consult a doctor for examination, and follow the doctor’s instructions for treatment and medication after clarification of the disease, and the prognosis is good for most of the patients after active treatment. Pay attention to daily oral hygiene care, avoid spicy stimulating food intake.