我科自1975年以来,用二流基丙醇治疗近百例由亚砷酸引起的化学性尖周炎,取得较满意效果,未发现不良反应。治疗方法:打开髓腔,彻底去净冠髓,清洗、干燥髓腔后,封入二巯基丙酸小棉球,一般1周左右,封药后叩痛,牙齿伸长感等尖周炎症状均可消失,个别效果不满意时,可再封二巯基丙醇1次,而后进行 Since 1975, our department has treated nearly 100 cases of chemical periapical dermatitis caused by arsenite, with more satisfactory results, and found no adverse reactions. Treatment: open the medullary cavity, completely to the net crown pulp, clean, dry the medullary cavity, sealed into the small mercaptan two cotton balls, usually about 1 week, after the drug knocking pain, tooth elongation and other symptoms of periapical inflammation Can disappear, the individual effect is not satisfied, can be re-sealed two mercapto-propanol 1, and then