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形象化治疗目标(visualized treatment Objeetive,VTO)已广泛应用于正畸疗效的预测和矫治计划的确定。本文对以骨组织预测为基础的计算机VTO方法和以软组织预测为基础的手工VTO方法的精确度进行比较,并就这两种VTO方法预测结果与实际治疗效果的相关程度进行了研究。 作者对34名安氏Ⅱ类患者拍摄治疗前后的头侧位X片,对其软硬组织标记点用两种VTO方法进行疗效预测,并将两种VTO方法分析的结果与实际治疗后的头影测量结果进行比较,得出以下结论:
Visualized treatment Objeetive (VTO) has been widely used in the prediction of orthodontic efficacy and the treatment plan. This article compares the accuracy of the computerized VTO method based on bone tissue prediction with the manual VTO method based on soft tissue prediction and studies the correlation between the predicted results of these two VTO methods and the actual therapeutic effect. The author of 34 patients with Class Ⅱ patients before and after treatment of the head of the X-ray film, the hard and soft tissue markers using two VTO method for the prediction of efficacy, and the results of two VTO methods and the actual treatment of the head Shadow measurement results were compared to draw the following conclusions: