目的：介绍一种提高全口义齿基托边缘封闭性的方法。
Objectives To introduce a method for improving the border seal between complete denture base and oral tissue.
结论：印模膏的改良应用提高了全口义齿基托的边缘封闭性，从而增加义齿固位力。
Conclusion Modified application of impression paste improve the border seal of complete denture base, then increase the retention power of complete denture.
结论：应用自酸蚀粘接系统和复合树脂修复牙体缺损，可以获得较好的固位性能和边缘封闭性，值得临床推广。
Conclusion: Using of self-etching bond system and composite resin to repair dental defects has indicated perfect retention and marginal sealing, which is worthy of wide clinical application.
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