基于逆向工程的牙种植体连接系统生物力学分析及动物实验研究

发布时间：2018-03-29 23:17

本文选题：种植体　切入点：有限元分析　出处：《东北大学》2014年硕士论文

【摘要】：牙种植体是迅速发展的口腔新型修复体,因其具有传统义齿所无法比拟的美观的外形以及良好的功能,现已成为患者普遍接受的一种治疗手段。但临床上的失败案例也不时出现,颌骨局部负荷过大引起的种植体周围骨吸收是造成种植修复失败的主要原因之一。牙种植修复的成功不但要求其具有良好的生物相容性外,还要拥有合适的连接系统结构,从而保障种植修复的远期成功率。本课题在牙种植体不同基台连接方式对种植系统各部件的应力分布影响方面,以及不同角度植入角度基台对颌骨界面和种植体系统的应力分布的影响均进行了详细的有限元分析。主要基于逆向工程建立人体真实颌骨结构,论文主要分析了目前比较流行的两种基台连接方式,分别为平台转换结构和平齐对接结构。参照具有平齐对接的美国3i种植系统4.0mm×10.0mm种植体和具有平台转换结构的韩国Dentium种植系统4.0mm×10.0mm种植体,在UG7.5建模软件中建立相应直基台、角度基台、连接螺丝和种植体等三位实体模型,并将种植体系统真实颌骨合理装配,采用Ansys Workbench14.0对系统进行生物力学有限元分析。然后进行了相关动物学骨组织结合能力的研究。本文研究结论：在垂直加载情况下平齐对接结构比较理想。在斜向加载情况下平台转换结构比较理想。平齐对接结构在颌骨界面的力学传递效果理想。平台转换的角度基台力学传递效果相对良好。15。角度基台连接系统应力传递效果良好。SLA+O工艺对种植体颌骨骨组织结合能力会产生一定良好的影响,具有进一步研究的必要。
[Abstract]:Dental implant is a new oral restoration because of its rapid development, the traditional denture Incomparable beautiful appearance and good function, has become a widely accepted treatment in patients with clinical failures. But also from time to time, partial load absorption of jaw bone around implant is one of the big cause the main causes of implant failure. Dental implant success requires not only has good biocompatibility, but also have to connect a suitable system structure, so as to ensure the long-term success rate of dental implants.
This topic of implant abutment teeth in connection to all parts of the stress distribution of implant system, and different angle of jaw implant angle abutment implant system interface and the stress distribution are detailed analyzed by finite element analysis. Mainly based on reverse engineering to establish true human jaw structure, the the main analysis of the two popular base station connection, respectively with platform switching structure and docking structure. With reference Qi 4.0mm America 3I implant system flush butt implants with 4.0mm * 10.0mm and South Korea Dentium system platform switching structure * 10.0mm implant, establish the corresponding straight abutment in UG7.5 modeling software in view of the abutment, implant connecting screws and three solid model, and the real jaw implant system reasonable assembly, using Ansys Workbench14.0 for biological system The finite element analysis was studied. Then the bone tissue binding ability of related zoology was studied.
The conclusions of this paper are as follows:
Flush butt ideal structure under vertical loading. Under oblique loading conditions of platform switching structure is ideal. The flush butt structure transfer effect is ideal in mechanical jaw interface. The transformation of base station platform mechanical transmission effect is relatively good.15. angle abutment connection system stress transfer effect good binding ability of.SLA+O process the implant bone tissue will produce good effect, has the need for further study.

【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.6

【参考文献】