Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, South Korea.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Feb;113(2):193-200. doi: 10.1016/j.tripleo.2011.02.003. Epub 2011 Apr 16.
Although several 3-dimensional virtual model surgery (3D-VMS) programs have been introduced to reduce time-consuming manual laboratory steps and potential errors, these programs still require 3D-computed tomography (3D-CT) data and involve complex computerized maneuvers. Because it is difficult to take 3D-CTs for all cases, a new VMS program using 2D lateral and posteroanterior cephalograms and 3D virtual dental models (2.5D-VMS program; 3Txer version 2.5, Orapix, Seoul, Korea) has recently been introduced. The purposes of this article were to present the methodology of the 2.5D-VMS program and to verify the accuracy of intermediate surgical wafers fabricated with the stereolithographic technique. Two cases successfully treated using the 2.5D-VMS program are presented. There was no significant difference in the position of upper dentition after surgical movement between 2.5D-VMS and 3D-VMS in 18 samples (less than 0.10 mm, P > .05, Wilcoxon-signed rank test). The 2.5D-VMS can be regarded as an effective alternative for 3D-VMS for cases in which 3D-CT data are not available.
虽然已经有几个三维虚拟模型手术（3D-VMS）程序被引入以减少耗时的手动实验室步骤和潜在的错误，但这些程序仍然需要三维计算机断层扫描（3D-CT）数据，并涉及复杂的计算机操作。由于难以对所有病例进行 3D-CT 检查，因此最近引入了一种使用二维侧位和前后位头颅侧位片和三维虚拟牙模型的新 VMS 程序（2.5D-VMS 程序；3Txer 版本 2.5，Orapix，首尔，韩国）。本文的目的是介绍 2.5D-VMS 程序的方法，并验证使用立体光刻技术制作的中间手术晶圆的准确性。本文呈现了两个成功使用 2.5D-VMS 程序治疗的病例。在 18 个样本中，手术移动后上颌牙列位置在 2.5D-VMS 和 3D-VMS 之间没有显著差异（小于 0.10 毫米，P>.05，Wilcoxon 符号秩检验）。对于没有 3D-CT 数据的病例，2.5D-VMS 可以被视为 3D-VMS 的有效替代方法。
