Abstract:

The normal function of complete denture is greatly based on retention. The basic theory of the retention of complete denture has not changed much. However，with the development of dental materials and restoration technologies，the principles of retention in complete denture have been more fully realized. In this article，the principles of retention in complete denture are reviewed. Moreover，the clinical strategies affecting retention in complete denture are also introduced from the aspects of the preparation of impression and model，the selection and arrangement of artificial teeth，the material selection for denture base and the individualized surface formations.

Key words: complete denture, retention, impression, model, artificial tooth, denture base

摘要：

固位是全口义齿正常行使功能的前提。全口义齿固位的基本理论一直以来没有大的变化，但随着牙科材料和修复技术的不断发展，使全口义齿的固位原理得到更加充分的临床应用。文章在回顾全口义齿固位原理的基础上，从印模与模型的制取、人工牙的选择与排列、基托材料的选择及个性化基托形态的形成等方面介绍了提升全口义齿固位力的临床策略。

关键词: 全口义齿, 固位, 印模, 模型, 人工牙, 基托