Stress and strain analysis of the bone-implant interface: A comparison of fiber reinforced composite and titanium implants utilizing 3D finite element study

骨-植入物界面的应力和应变分析：利用 3D 有限元研究比较纤维增强复合材料和钛植入物

• 批准号: 24792117
• 负责人: SHINYA Akikazu
• 金额: $ 2.75万
• 依托单位: The Nippon Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24792117/
• 关键词: グラスファイバー補強コンポジットレジン; FRC; FEM; 国際研究者交流 Finland; 国際情報交換 Belgium; Implant; ＦＲＣ; ＦＥＭ; 国際研究者交流 Finland; 国際情報交換 Belgium; フィンランド

This study analyzed stress and strain mediated by two different implant materials, titanium (Ti) and experimental fiber reinforced composite (FRC) on the implant and on the bone tissue surrounding the implant. 3D finite element models constructed from a mandibular bone and an implant were subjected to a load of 50 N in vertical and horizontal directions. Maximum stress concentrations were located around the implant on the rim of the cortical bone in implants materials, Ti and overall stresses decreased toward the Ti implant apex. In the FRC implant, a stress value of 0.6-2.0 MPa was detected not only on the screw threads, but also on the implant surface between the threads. Clear differences were observed in the strain distribution between the materials.The vertical load stress range of the FRC implant was close to the stress level for optimal bone growth. Furthermore, the stress at the bone around the FRC implant was more evenly distributed than that with Ti implant.

本研究分析了两种不同种植体材料（钛（Ti）和实验纤维增强复合材料（FRC））在种植体和种植体周围骨组织上介导的应力和应变。由下颌骨和种植体构建的三维有限元模型在垂直和水平方向上承受50 N的载荷。最大应力集中位于种植体周围的皮质骨边缘上，种植体材料，钛和总应力朝着钛种植体顶点下降。在FRC种植体中，不仅在螺纹上，而且在螺纹之间的种植体表面上检测到0.6-2.0 MPa的应力值。两种材料的应变分布存在明显差异，FRC种植体的垂直载荷应力范围接近最佳骨生长的应力水平。此外，FRC种植体周围骨的应力分布比钛种植体更均匀。

项目成果

接着を活かす歯冠修復メタルフリー補綴装置接着の留意点

利用粘接进行冠修复的无金属修复装置粘接时的注意事项

• 发表时间: 2013
• 作者: 新谷明一

Stress distribution of bone around FRC implant vs. titanium implant

FRC 种植体周围骨的应力分布与钛种植体的比较

• 发表时间: 2013
• 作者: Akikazu Shinya;Soichi Kuroda;HirokiHase;Kenichi Shimizu;Daiichiro Yokoyama;Lippo Lassila;Akiyoshi Shinya;Pekka Vallittu
• 通讯作者: Pekka Vallittu