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异体脱钙骨移植已有一百余年历史,在国外已做大量工作,获得了较为满意的效果。1957年 Boyne 等将异体冻干骨移植应用到口腔外科,用于再植牙等,取得良好效果。近20年来在牙周手术移植术进展较快,但应用于根尖病变较少。国内郑际烈等曾报告13例颌骨根端囊肿骨移植治疗。而作为根管充填材料目前尚未见报道。我科从1984年10月～1986年9月采用同种异体脱钙骨粉对28例患慢性根尖
Allogeneic decalcified bone transplantation has a history of more than 100 years, has done a lot of work abroad, obtained more satisfactory results. In 1957, Boyne et al. Applied allogeneic freeze-dried bone graft to oral surgery for replantation and achieved good results. Nearly 20 years of periodontal surgery in the progress of rapid progress, but less apical lesions. Domestic Zhenglie Lie had reported 13 cases of jaw bone root bone cyst transplantation. As a root canal filling material has not been reported. Our department from October 1984 to September 1986 using allogenic decalcified bone powder in 28 cases of chronic apical