从 Bnn■ken 于1893年应用干髓法至今已有近百年历史,由于病灶感染学说及口腔免疫学的发展,对于髓术提出了许多异议,近年来此法在许多国家已弃之不用,但在我国许多医院特别是基层医院仍被较为广泛地应用。近几年国内有些学者在动物实验等基础研究方面做了许多工作,但对其临床疗效的观察报道并不多。本文对1982～1989年间曾做干髓术的963例进行了疗效观察,现报告如下。 From Bnn ■ ken in 1893, the application of dry cell method has been nearly a hundred years of history, due to the theory of focal infection and the development of oral immunology, made a lot of objections to medulla, this method has been abandoned in many countries in recent years , But many hospitals in our country, especially grass-roots hospitals are still more widely used. In recent years, some domestic scholars have done a lot of work in basic research such as animal experiments, but not many reports on their clinical efficacy are reported. This article from 1982 to 1989 had done dry-core surgery in 963 cases were observed, are as follows.