摘要
目的:使用硬组织切片机和常用的三维成像软件,对磨牙根部牙体组织进行三维重建,建立一种观察牙体内部结构、形态的方法,并比较牙体的X线成像与三维成像观察到的根管数目。方法:取12颗因牙周病拔出的成人离体磨牙,拔出前拍摄体内X线片。运用硬组织切片机,将样本从根尖末端至根分叉进行连续切片,通过体视显微镜放大每个牙根横切面后,数码相机摄片,所得照片经过3dsmax软件重建,得出可以从任何角度观察牙体形态和结构的三维图像。结果:利用硬组织切片机和三维软件3dsmax能重建牙体的形态与结构,X线成像可观察到的根管总数为19个,远远少于在三维成像中观察到的根管总数(47个)。结论:使用硬组织切片机和三维软件3dsmax,可建立起一种实验室牙体三维重建的方法。
PURPOSE：To find a convenient way to reconstruct the morphologic characters of the molar root canal with 3dsmax8.0 software in the laboratory ,and evaluate the difference of the number of molar root canal between the in vivo X-ray image and three-dimensional image. METHODS： Twelve recently extracted molar roots were studied. In vivo X- ray images were taken before serial section. Starting at the root apex, serial cross sections were taken from each specimen using a saw microtome, and each cross section was photographed under a stereoscopic microscope. All of the digital photos were inputted into the computer to be reconstructed by 3dsmax software. RESULTS： A three-dimensional image of the molar root canal was built successfully. There were 19 molar root canals observed via in vivo X-ray image and 47 molar root canals observed in the three-dimensional image. The number of molar root canal that observed via in vivo X-ray image was less than that from the three-dimensional image. CONCLUSION： Use of saw microtome and 3dsmax software can reconstruct the three-dimensional image of the tooth.
出处
《上海口腔医学》
CAS
CSCD
2010年第1期91-94,共4页
Shanghai Journal of Stomatology
基金
广西壮族自治区教育厅科研项目(桂教科研042006)~~
关键词
磨牙
三维重建
X线成像
根管数
Molar
Three-dimensional reconstruction
X-ray imaging
Number of root canal
