使用计算机辅助设计/计算机辅助制造（CAD/CAM）制作的定制弓丝实施正畸治疗虚拟设置的精准度。
Precision of implementing virtual setups for orthodontic treatment using CAD/CAM-fabricated custom archwires.
作者信息
Müller-Hartwich Ralf, Jost-Brinkmann Paul-Georg, Schubert Katharina
机构信息
Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, Center for Dental and Craniofacial Sciences, Charité-Universitaetsmedizin Berlin, Aßmannshauser Straße 4-6, 14197, Berlin, Germany.
出版信息
J Orofac Orthop. 2016 Jan;77(1):1-8. doi: 10.1007/s00056-015-0001-5. Epub 2016 Jan 11.
OBJECTIVES
The SureSmile® process (OraMetrix®; Richardson, TX, USA) utilizes computer-aided design and computer-aided manufacturing (CAD/CAM). A virtual setup is created for treatment planning and chairside implementation using custom archwires fabricated by robots. The objective of this study was to determine the precision of this implementation.
METHODS
The setup models of 26 consecutive patients were compared to models of the final outcome. Using a virtual matching process, the planned and the achieved tooth positions were superimposed and the differences between them calculated along three translational planes and three rotational axes, thus, yielding six deviation values for each tooth.
RESULTS
The median deviations were 0.19-0.21 mm based on translational movements and 1.77°-3.04° based on rotational movements. The precision of implementing the setups decreased from anterior to posterior, with incisors showing the best outcomes.
CONCLUSION
Virtual setups can be implemented in a clinically successful fashion with custom archwires fabricated by CAD/CAM in accordance with the SureSmile® process.
目的
SureSmile® 系统（美国得克萨斯州理查森市的 OraMetrix® 公司）采用计算机辅助设计与计算机辅助制造（CAD/CAM）技术。通过机器人制作的定制弓丝，为治疗计划和椅旁操作创建虚拟排牙。本研究的目的是确定这种操作的精度。
方法
将连续 26 例患者的排牙模型与最终结果模型进行比较。通过虚拟匹配过程，将计划的牙齿位置与实际达到的位置进行叠加，并沿三个平移平面和三个旋转轴计算它们之间的差异，从而得出每颗牙齿的六个偏差值。
结果
基于平移运动的中位数偏差为 0.19 - 0.21 毫米，基于旋转运动的中位数偏差为 1.77° - 3.04°。排牙操作的精度从前向后逐渐降低，切牙显示出最佳结果。
结论
根据 SureSmile® 系统，使用 CAD/CAM 制作的定制弓丝，虚拟排牙能够以临床成功的方式实现。
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