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.
方法：对100例无牙牙合患者采用二次印模法，取功能性印模，常规制作钛腭托全口义齿，并进行1 ~3年的临床疗效观察。
Methods: 100 edentulous patients, who wore titanium palatal plate denture with two-step impression, were observed the clinical effect for 1 to 3 years.
方法：对100例无牙牙合患者采用二次印模法，取功能性印模，常规制作钛腭托全口义齿，并进行1 ~3年的临床疗效观察。
Methods: 100 edentulous patients, who wore titanium palatal plate denture with two-step impression, were observed the clinical effect for 1 to 3 years.
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