前言自1974年大量开展自凝快速捏牙工作以来,进展迅速,颇有成效。但对自凝塑胶的质量问题,仍存在与发生某些争议。对此,我科自凝复查小组几年来经过二次大量调查。以及最近又对国产自凝塑胶所存在的问题,重新加以分析研究,(己在“关于国产自凝塑胶的评价与探讨”一文中加以总结, Preface Since 1974, a large number of self-curing quick pinch teeth work since the progress is rapid and fruitful. However, the quality of self-curing plastic, there are still some controversy occurred. In this regard, our department self-retest group after a large number of second investigation in recent years. As well as the recent problems of domestic self-condensing plastic, to re-analyze the research (has been “on the evaluation and discussion of domestic self-condensing plastic,” a paper to be summarized,