摘要
目的探索建立数字化颅颌运动系统的方法。方法根据三维激光扫描图像、螺旋CT图像重建包括牙齿、髁突和关节窝的三维数字模型;利用ARCUS digma系统获取下颌运动轨迹,并将三维数字模型和运动轨迹导入同一坐标系中;编写数字化颅颌运动软件。结果实现了静止和下颌运动状态下关节与牙列三维数字模型的动画模拟、接触点检测、多角度观察及断层观察;尝试了对平面、曲线、螺旋轴等进行显示。结论初步建立了数字化颅颌运动系统,实现了颅颌运动的三维显示和模拟,为数字化颅颌运动系统的进一步研究奠定了基础。
Objective To look for the way of three-dimensional simulation of the craniofacial system. Methods A three-dimensional laser scanner was used for gypsum models digitization and computed tomography scans was employed for skull reconstruction, then the data of teeth and temporomandibular joint were picked up and integrated. The ARCUS digma system was used to record spatial mandibular movements. The data of both digital reconstruction and spatial movements were transferred into one coordinate system. The software for three-dimensional simulation was programmed. Results The preliminary program could be used to analyze static and dynamic occlusion and gnathic relations, to check the contact points and to show from various visual angles and slices. The occlusal plane, curves, and helical axis were initially defined and displayed. Conclusions Using available instruments and methods, we developed the primary edition for three-dimensional simulation of the craniofacial system. However, it is far from a mature system and there is still plenty of work to be done.
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2005年第5期405-407,共3页
Chinese Journal of Stomatology
