中国实用口腔科杂志

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不同黏结材料对金属全冠固位力影响的研究

石云凯李振春邢文忠侯金华,刘 岚
  

  1. 大连大学附属口腔医院 大连市口腔医院
  • 收稿日期:2009-02-26 修回日期:2009-03-25 出版日期:2009-04-15 发布日期:2009-04-15

  • Received:2009-02-26 Revised:2009-03-25 Online:2009-04-15 Published:2009-04-15

摘要:

目的 比较修复临床常用的9种黏结材料与传统的磷酸锌水门汀对金属全冠固位力的影响。方法 2008年1—12月在大连市口腔医院选用90颗完整的双尖牙经包埋固位后,用车床进行牙体预备。使预备后的牙体保持4 mm的临床冠高度,20 mm的临床冠周径。用失蜡铸造法完成金属全冠制作。用不同的黏结材料黏固金属全冠,用万能实验机检测金属全冠的固位力。经方差分析,比较不同黏结材料对金属全冠固位力的影响。结果 本研究使用的黏结材料与传统的磷酸锌水门汀相比,对金属全冠固位力的影响存在显著的差异(P < 0.01),不同黏结材料对金属全冠固位力的影响也有显著性差异(P < 0.05)。结论 不同种类的黏结材料对金属全冠固位力的影响存在差异,修复临床应根据不同的临床情况选择不同的黏结材料。

关键词: 黏结材料, 金属全冠, 固位力

Abstract:

Objective To evaluate the effects of different luting cements on retention force of casting metal full crown. Methods Totally 90 extracted intact human pre-molar teeth were invested and prepared by lathe. The tooth height was 4mm, perimeter 20mm. The casting metal full crown was made by losing wax. The casting was cemented by different luting cements. The retention force of casting metal crown was measured and evaluated by One-way ANOVA (P < 0.05). Results The effect of different luting cements was significantly defferenct on the retention force of casting metal crown. Conclusion The effect luting cements differed considerably on retention force of casting metal crown.

Key words: luting cements, retention force, metal full crown