关键词: 义齿固位, 髓超嵌体, 固位形, 设计, 抗折强度

Abstract: Endocrowns are increasingly used in restorative dentistry because of their advantages of less tooth preparation，good esthetic effect，and shorter treatment time，but their wide application is limited by shortcomings such as poor retention which results in a high rate of long-term failure of restorations. A well-designed retention form can enhance the retention effect of restorations. The article provides a review of the retention form design of endocrown and its effect on the fracture resistance of the tooth，which will provide a reference for the design and preparation of retention forms of endocrowns.

Key words: denture retention, endocrown, retention form, design, fracture resistance