基于CT图像种植牙的有限元分析  

Finite element analysis of the dental implant based on the CT images

作　　者：杨伟江 赵海波 王国栋[1] 刘泉[2] 

机构地区：[1]柳州市工人医院放射科,广西壮族自治区柳州市545005 [2]柳州市工人医院口腔科,广西壮族自治区柳州市545005

出　　处：《中国组织工程研究》2012年第52期9823-9827,共5页Chinese Journal of Tissue Engineering Research

摘　　要：背景:多层螺旋CT的出现及后处理技术为种植牙手术前模拟测量手术位置、手术区域等建立标准化数值。目的:评价基于螺旋CT图像的有限元分析在种植牙中的研究和临床价值。方法:以"CT,有限元,种植牙,受力分析"为中文关键词;以"CT,finite element,dental implants,stress analysis"为英文关键词,采用计算机检索2002年1月至2012年1月相关文章。纳入与种植牙有限元分析相关文章;排除重复研究或Meta分析类文章。以7篇文献为重点讨论有限元分析在种植牙中的研究和应用。结果与结论:螺旋CT采集的颌骨DICM图像经过建模后进行的有限元分析,为手术前提供更全面、更可靠的影像资料,临床口腔医师可根据有限元模型进行手术方案设计,测量手术中需要的数据,模拟手术流程,减少了患者的痛苦。把CT和数字化的模型建立及有限元分析的生物力学研究合理的结合,分析需要种植牙的位置和与周围结构关系,为口腔临床医师提供全面的影像资料和力学分析依据。BACKGROUND： The emergence of multi-slice spiral CT and post-processing techniques can establish the standardized values for the simulation and measuring of the surgical site and the surgical area before dental implant surgery. OBJECTIVE： To evaluate the research and clinical value of spiral CT-based finite element analysis in implant dentistry. METHODS： A computer-based retrieval was performed for the related articles with the key words of ＂CT, finite element, dental implants, stress analysis＂ in Chinese and English from January 2002 to January 2012. The related articles of the dental implant finite element analysis were included; the repeatitive studies or Meta-analysis articles were excluded. The research and application of finite element analysis in implant dentistry were discussed focused in 7 articles. RESULTS AND CONCLUSION： The finite element analysis of jaw DICM image spiral CT acquisition image was performed after modeling, which provides more comprehensive and reliable image data for the operation, and the clinical dentists can design the surgery program based on the finite element model in order to measure the data required in the surgery, simulate the surgical process and reduce the pain of the patients. Reasonable combination of biomechanics researches of the CT image and the digitized modeling establishing and finite element analysis, and the analysis of the relationship between dental implant position and the surrounding structures, can provide allround image data and mechanical analysis basis for the clinical dentists.

关 键 词：多层螺旋CT 数字化 CT 有限元 种植牙 受力分析 DICM图像 模型建立 颌骨 

分 类 号：R318[医药卫生—生物医学工程]