Biomechanical analysis in the internal structure of jaw bone for prevention of dental implant failure

颌骨内部结构的生物力学分析预防牙种植体失败

• 批准号: 19592259
• 负责人: IDE Yoshinobu
• 金额: $ 2.91万
• 依托单位: Tokyo Dental College
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19592259/
• 关键词: 歯科インプラント学; インプラント; マイクロCT; 有限要素解析; 偶発症; 顎骨内部構造; 骨梁; 荷重伝達経路; 主応力ベクトル

To evaluate the sites for dental implant placement and prevent several implant failure, we used micro-CT for 3D measurement and biomechanical analysis to observe anatomical constructions and to clarify the influence of functional pressure on the internal structure of the jaw bone through implant. The 3D-reconstructed images revealed that jaw bone had a complex structure, and care must be exercised when inserting dental implants. In the finite element analysis, we visualized load transfer paths, and the results suggested that trabecular bone realignment around an implant is thought to play an important role in supporting the pressure. And examination of the structural properties of cancellous bone including stress analysis would be useful in predicting acceptable loads of endosseous implants.

为了评估牙种植体的植入位置并防止多次种植体失败，我们使用微型 CT 进行 3D 测量和生物力学分析，以观察解剖结构并阐明功能压力通过种植体对颌骨内部结构的影响。 3D重建图像显示，颌骨结构复杂，植入牙种植体时必须小心谨慎。在有限元分析中，我们可视化了负载传递路径，结果表明种植体周围的骨小梁重新排列被认为在支撑压力方面发挥着重要作用。对松质骨结构特性的检查（包括应力分析）将有助于预测骨内植入物的可接受负载。