Chronic periodontitis does not cause cancer. Chronic periodontitis is a kind of chronic inflammation, which will cause gum swelling, bleeding, gum recession, and even tooth loss, but it will not induce gene mutation and cause the production of cancer cells, so it will not become cancerous. Chronic periodontitis should remove disease-causing factors, use scaling and other ways to remove tartar and plaque, in addition to long-term plaque control; for some serious periodontitis, you can also use drugs, such as metronidazole, cephalexin and other antibiotics; for serious loose teeth, there is no value in retention, it should also be extracted as soon as possible. Periodontitis should pay attention to oral hygiene, choose the right toothbrush and toothpaste, brush your teeth every morning and evening, pay attention to a balanced diet, pay attention to rinsing your mouth after meals, regular oral hygiene checkups, and scaling every six months to remove tartar and plaque from the mouth. Please follow your doctor’s instructions for medication.