Sameshima G T, Kawakami R K, Kaminishi R M, Sinclair P M
Dept. of Orthodontics, USC School of Dentistry, Los Angeles 90089-0641, USA.
Angle Orthod. 1997;67(5):347-54. doi: 10.1043/0003-3219(1997)067<0347:PSTCIM>2.3.CO;2.
The purpose of this retrospective study was to investigate the accuracy of two video imaging systems, Orthognathic Treatment Planner (OTP) and Prescription Portrait (Portrait), in predicting soft tissue profile changes after maxillary impaction surgery. Computer-generated line drawing predictions were compared with actual postsurgical profiles. Neither program was very accurate with vertical measures and lower lip contour. Portrait was more accurate at pronasale, inferior labial sulcus, and pogonion in the y-axis direction (P < 0.05). Video image predictions produced from the presurgical photographs were rated by orthodontists, surgeons, and lay people, who compared the predictions with the actual postsurgical photographs using a visual analog scale. Portrait's prediction images were scored higher than OTP's for five of eight areas. Orthodontists were most critical of the lips and the overall appearance. Lay people were most critical of the chin and submental areas.
这项回顾性研究的目的是调查两种视频成像系统，即正颌治疗计划软件（OTP）和定制人像软件（Portrait），在预测上颌骨截骨术术后软组织轮廓变化方面的准确性。将计算机生成的线条图预测结果与术后实际轮廓进行比较。两个程序在垂直测量和下唇轮廓方面都不太准确。Portrait软件在鼻前点、下唇沟和颏前点的y轴方向上预测更准确（P < 0.05）。正畸医生、外科医生和外行人对术前照片生成的视频图像预测结果进行评分，他们使用视觉模拟量表将预测结果与术后实际照片进行比较。在八个区域中的五个区域，Portrait软件的预测图像得分高于OTP软件。正畸医生对嘴唇和整体外观最为挑剔。外行人对下巴和颏下区域最为挑剔。
