• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Prosthetic Dentistry >The influence of implant location and length on stress distribution for three-unit implant-supported posterior cantilever fixed partial dentures.
【24h】

The influence of implant location and length on stress distribution for three-unit implant-supported posterior cantilever fixed partial dentures.

机译：种植体位置和长度对三​​单元种植体支持的后悬臂固定局部义齿的应力分布的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

STATEMENT OF THE PROBLEM: The influence of implant location for an implant-supported cantilever fixed partial denture (FPD) on stress distribution in the bone has not been sufficiently assessed. PURPOSE: This study examined the influence of location and length of implants on stress distribution for 3-unit posterior FPDs in the posterior mandibular bone. MATERIAL AND METHODS: Each 3-D finite element model included an FPD, mesial and distal implants, and supporting bone. The mesial implant with a length of 10 mm or 12 mm was placed in locations where its long axis was 3 mm to 11 mm posterior to the remaining first premolar. The distal implant with a length of 10 mm was fixed at the same distance from the premolar on each model. A buccally-oriented oblique occlusal force of 100 N was placed on each occlusal surface of the FPD. RESULTS: The maximum equivalent stresses were shown at the cervical region in the cortical bone adjacent to the mesial or the distal implants. Relatively high stresses of up to 73 MPa were shown adjacent to the mesial implant located 9 mm or more posterior to the first premolar. The use of a 12-mm-long mesial implant demonstrated a relatively weak influence on stress reduction. CONCLUSION: The implant location in the cantilever FPDs was a significant factor influencing the stress created in the bone.
机译：问题陈述：植入物支撑的悬臂固定局部义齿（FPD）的植入物位置对骨骼中应力分布的影响尚未得到充分评估。目的：本研究检查了植入物的位置和长度对下颌后骨中3个单元后FPD应力分布的影响。材料和方法：每个3-D有限元模型均包括FPD，内侧和远端植入物以及支撑骨。将长度为10毫米或12毫米的中胚层植入物放置在其长轴位于其余第一前磨牙之后3毫米至11毫米的位置。在每个模型上，将长度为10 mm的远端植入物固定在距前磨牙相同的距离处。在FPD的每个咬合面上放置一个100 N的颊侧斜向咬合力。结果：最大等效应力显示在邻近中胚层或远端植入物的皮质骨的子宫颈区域。与位于第一前磨牙后9 mm或更多的牙种植体相邻，显示出高达73 MPa的相对较高的应力。使用12毫米长的中胚层植入物对应力降低的影响相对较弱。结论：悬臂式FPD中的植入物位置是影响骨骼中产生应力的重要因素。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号