Often stuffed teeth lead to swollen and painful gums, consider that there may be teeth adjacent to the caries, periodontal disease, teeth misalignment and other factors, you need to consult a doctor in a timely manner, fillings, periodontal treatment, orthodontics and other treatments. 1. Dental caries adjacent to the teeth: If the teeth adjacent to the dentin tissue is decayed, it may lead to poor contact with the neighboring surfaces, thus leading to food impaction and cause gingival papillae swollen and painful phenomenon, you can go to the hospital stomatology department for an examination, and then clean the decayed dentin tissues in a timely manner, and then use filling materials to repair the caries cavities and restore a good neighboring relationship. 2. Periodontal disease: teeth due to chronic periodontitis leading to gum recession, alveolar bone resorption, tooth displacement and other symptoms, teeth are also prone to food impaction after eating, need to go to the hospital periodontal scaling, as well as periodontal treatment, periodontal fiber plate fixation and other operations in order to alleviate the phenomenon of swollen and painful gums. 3. Teeth misalignment: If the teeth are overcrowded or twisted misaligned resulting in poor neighboring relations and thus produce food debris phenomenon, you need to go to the hospital orthodontics to correct the teeth in order to restore normal and good neighboring relations, so as to improve the problem of food debris and swollen and painful gums.