| 后牙单种植体支持式义齿载荷点对种植体周围组织的力学影响 |
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| 引用本文： | 武常亮,周延民,胡建军,柳海英.后牙单种植体支持式义齿载荷点对种植体周围组织的力学影响[J].吉林大学学报(医学版),2002,28(3):260-262. |
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| 作者姓名： | 武常亮 周延民 胡建军 柳海英 |
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| 作者单位： | 吉林大学口腔医院种植中心,吉林,长春130041 |
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| 基金项目： | 吉林省卫生厅科研项目;96080; |
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| 摘 要： | 目的:探讨不同载荷条件对后牙单种植体周围组织的力学影响.方法:在后牙单种植体支持式义齿上部结构不同载荷点分别施加载荷,以电阻应变法对种植体颊舌两侧组织进行了应变分析.结果:义齿在中央载荷点及近远中载荷点受到垂直载荷作用时种植体颊舌两侧组织产生的应变无明显差异;在颊舌载荷点受垂直载荷作用时,种植体颊舌两侧组织产生的应变有显著差异;所有载荷点测得应变与载荷呈正相关;在颊舌载荷点距中央点越远应变峰值越大.结论:种植义齿在颊舌载荷点受力时种植体周围组织应变较大,种植义齿的上部结构应适当减小颊舌径,降低牙尖斜度,以减少颊舌载荷受力时对种植体下部结构的影响.
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| 关 键 词： | 单个后牙 种植义齿 载荷 |
| 文章编号： | 1671-587X(2002)03-0260-03 |
| 修稿时间： | 2001年12月29日 |
The influence of load location posterior single tooth replacement on the strains around endosteal implant |
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| WU Chang liang,ZHOU Yan min,HU Jian jun,LIU Hai ying.The influence of load location posterior single tooth replacement on the strains around endosteal implant[J].Journal of Jilin University: Med Ed,2002,28(3):260-262. |
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| Authors: | WU Chang liang ZHOU Yan min HU Jian jun LIU Hai ying |
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| Abstract: | Objective: To investigate the influence of load location to the strains at the tissue around endosteal implant for posterior single tooth replacement. Methods: Strains of the tissue around the implant were tested and effects of nine load locations were analyzed by resistant strain method.Results: Strains of buccal and lingual tissue were significantly different at buccolingual locations but no significant at center fossa and mesiodistal locations. For all loading conditions, there was positive correspondence between the strains loads.Conclusions: The influence is increased when loads on buccal and linual locations. Buccolinqual width should be substracted during replacement to reduce cusp inclination. |
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| Keywords: | posterior single tooth implant denture load |
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