干尸疗法治疗牙病,已有100余年历史,系用三氧化二砷使牙髓失活后,在无痛下切除冠部牙髓,然后用以三聚甲醛为主的干尸剂敷贴在根部牙髓断面,使根部牙髓在无菌条件下干性坏死,形成干尸样,长期保留在根管内,而保留病牙。但三氧化二砷毒性很强,它可以破坏神经纤维和血管,又具有较 Mucus treatment of dental disease, has more than 100 years of history, the Department of arsenic trioxide to inactivate the pulp, the crown in the painless removal of the coronal pulp, and then to the paraformaldehyde-based corpse agent applied to the root pulp section , So that the root pulp in aseptic conditions dry necrosis, the formation of dry-like, long-term retention in the root canal, while retaining the diseased teeth. But arsenic trioxide is very toxic, it can damage nerve fibers and blood vessels, but also has more