Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria; Laboratory of Mechanical and Physical of Materials (LMPM), Djillali Liabes University, Sidi Bel-Abbes, Algeria.
Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria.
J Long Term Eff Med Implants. 2020;30(1):21-30. doi: 10.1615/JLongTermEffMedImplants.2020035028.
Since the advent of osteointegrated implantology and its precepts issued by the Swedish School, assessment of peri-implant bone loss criteria has often been debated by professionals in this field. Long-term success of dental implants is highly reliant on structural and functional osseointegration between implant and surrounding intraoral tissues. In this context, the current study aims to provide biomechanical explanations for causes of bone loss around the dental implant after osseointegration by computational analysis, using a three-dimensional finite-element (FE) method. We design an approximate virtual model that includes the smooth, cylindrical dental implant and alveolar bone. We use SolidWorks software and export to ABAQUS for computational stress analysis at the bone-implant interface. The numerical model is created and loaded with a compressive occlusal force that is applied at the top of the implant platform. We thoroughly investigate the generated FE results and stress responses of the bone-implant system. The developed model is extremely useful for indicating biomechanical phenomena in the bone-implant interface that play a key part in bone loss around the dental implant. In addition, obtained results tend to deliver an improved understanding to designers in the biomedical engineering field and in dentistry.
自从骨整合种植体学及其瑞典学派提出的原理问世以来，种植体周围骨丢失标准的评估经常受到该领域专业人士的争论。牙种植体的长期成功高度依赖于种植体与周围口腔组织之间的结构和功能骨整合。在这种情况下，本研究旨在通过计算分析，使用三维有限元（FE）方法，为骨整合后种植体周围骨丢失的原因提供生物力学解释。我们设计了一个近似的虚拟模型，包括光滑的圆柱形牙种植体和牙槽骨。我们使用 SolidWorks 软件并将其导出到 ABAQUS 进行骨-种植体界面的计算应力分析。创建了数值模型并施加一个压缩性咬合力，该力施加在种植体平台的顶部。我们彻底研究了生成的 FE 结果和骨-种植体系统的应力响应。开发的模型对于指示在骨-种植体界面中发挥关键作用的生物力学现象非常有用，这些现象会导致种植体周围的骨丢失。此外，获得的结果有助于提高生物医学工程领域和牙科领域的设计者的理解。
