Results The occlusion contact data and graph of wedge-shaped teeth defect had the features of trauma occlusion. 42.97% of them has the larger axial gradient degree, 96.09% of them has abration in different classes, 46.29% missing the front teeth and 57.03
Results The occlusion contact data and graph of wedge-shaped teeth defect had the features of trauma occlusion. 42.97% of them has the larger axial gradient degree, 96.09% of them has abration in different classes, 46.29% missing the front teeth and 57.03
方法采用临床物理检查和石膏模型测量，确定楔状缺损牙轴倾度、磨损指数、牙缺失等指标；采用计算机图像处理技术，自行编制软体程式及硬体系统，测试被检光（牙合）片，分析并提取楔状缺损牙接触（牙合）力、面积、接触点（牙合）应力等资料和图形信息。