种植体支持上颌中切牙的有限元分析
发布时间：2018-08-30 08:31
【摘要】：目的:研究使用种植体支持上颌中切牙所需要的恰当规格。方法:本实验使用一位覆合覆盖正常、骨量符合种植要求的、中切缺失患者的CBCT数据,利用Mimics、Ansys、Pro-E等软件,建立上颌骨片段、植体、基台、冠等三维有限元模型。在此基础上,分析相同载荷下随种植体规格的变化,种植体周围骨、种植本身和基台的应力分布及变化情况。结果:1、使用锥形束CT、Mimics 17.0、Solidworks Premium 2014、Geomagic Studio 12.0、Pro-E等,建立了1个骨块、1个冠、1个基台和24个植体等三维有限元分析模型。2、在斜向静态载荷作用下,种植体周围骨应力随种植体规格增加而减小;种植体直径变化比长度改变对骨应力影响更明显。种植体应力主要集中于其颈部,并随其规格增大而减小。基台应力主要集中于与种植体接触区,并且随种植体规格增大而减小。结论:在该实验规定的条件下,我们从骨阈值理论的角度出发,筛选出了适宜于支持上颌中切牙种植体的理论数据。修复上颌中切牙所能选用植体的最小规格为φ3.2mm xL10mm。
[Abstract]:Objective: to study the appropriate specifications of maxillary central incisor with implants. Methods: in this experiment, the CBCT data of a patient with normal coverage and bone mass in accordance with implant requirements were used to establish a three-dimensional finite element model of maxillary fragments, implants, bases and crowns by using Mimics,Ansys,Pro-E and other software. On this basis, the stress distribution and changes of the surrounding bone, the implant itself and the abutment were analyzed under the same load with the implant size. Results: 1. Using CT,Mimics 17.0Solidworks Premium 2014Geomagic Studio 12.0Pro-E, a three-dimensional finite element analysis model of bone mass, one crown, one base and 24 implants was established. Under oblique static loading, the bone stress around the implant decreased with the increase of implant size. The influence of implant diameter on bone stress was more obvious than that of length. The stress of implant is mainly concentrated on its neck and decreases with the increase of its size. The stress of the abutment is mainly concentrated in the contact area with the implant and decreases with the increase of implant size. Conclusion: under the conditions specified in the experiment, we selected the theoretical data suitable for supporting maxillary central incisor implants from the point of view of bone threshold theory. The minimum size of implant selection for maxillary central incisor restoration is 蠁 3.2mm xL10mm.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783.6
[Abstract]:Objective: to study the appropriate specifications of maxillary central incisor with implants. Methods: in this experiment, the CBCT data of a patient with normal coverage and bone mass in accordance with implant requirements were used to establish a three-dimensional finite element model of maxillary fragments, implants, bases and crowns by using Mimics,Ansys,Pro-E and other software. On this basis, the stress distribution and changes of the surrounding bone, the implant itself and the abutment were analyzed under the same load with the implant size. Results: 1. Using CT,Mimics 17.0Solidworks Premium 2014Geomagic Studio 12.0Pro-E, a three-dimensional finite element analysis model of bone mass, one crown, one base and 24 implants was established. Under oblique static loading, the bone stress around the implant decreased with the increase of implant size. The influence of implant diameter on bone stress was more obvious than that of length. The stress of implant is mainly concentrated on its neck and decreases with the increase of its size. The stress of the abutment is mainly concentrated in the contact area with the implant and decreases with the increase of implant size. Conclusion: under the conditions specified in the experiment, we selected the theoretical data suitable for supporting maxillary central incisor implants from the point of view of bone threshold theory. The minimum size of implant selection for maxillary central incisor restoration is 蠁 3.2mm xL10mm.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783.6
【参考文献】
相关期刊论文 前10条
1 吴纪楠;陈俊兰;林少珍;胡文;李建平;;Zimmer种植体在上前牙即刻种植与修复中的临床应用[J];中华口腔医学研究杂志(电子版);2015年05期
2 高岩;徐淑兰;周磊;杨烁;周震;;Osstem MS一段式种植体用于下前牙小间隙种植修复的临床回顾研究[J];实用口腔医学杂志;2015年05期
3 朱学儒;李英;;上颌骨三维有限元建模方法的研究进展[J];全科口腔医学电子杂志;2015年09期
4 刘慧凤;黄盛兴;石磊;马丽辉;;基于锥形束CT的上颌前牙区解剖形态学研究[J];广东牙病防治;2015年06期
5 林曦;刘卫平;周磊;;小直径种植体折断原因分析及文献复习[J];实用口腔医学杂志;2015年01期
6 刘森庆;杜瑞钿;耿发云;李红文;傅云婷;王晓彦;;Ankylos小直径种植体修复后牙区牙列缺损的效果评价[J];广东牙病防治;2014年07期
7 赵宝红;张娇;蔺增;赵吉奎;封伟;江鹭鹭;邓春富;尚德浩;张，
本文编号：2212538
本文链接：https://www.wllwen.com/yixuelunwen/kouq/2212538.html
最近更新
教材专著
