Development of self-learning training program for tooth preparation and its practical effects

牙齿准备自学培训的实施效果，有利于通过对牙齿减少的认识反馈，客观地确定技术水平。人们认识到，由于带有钻石尖端的空气涡轮手机对牙科学生来说很难有效操作，因此无法在舌齿表面保持适当的间隙。牙科技能模拟训练系统的使用，可以客观地确定技术水平，将牙齿的缩小量评价为数值，但缩小量的离散度较大，影响了操作手上测点的标准化和稳定性。

The effects of self-learning training program for tooth preparation have advantages to be possible to confirm the technical level objectively by feedbacks in understandings of tooth reduction. It was recognized that tooth reduction could not be maintained proper clearance at the lingual tooth surface because the effective operation of the air-turbine handpiece with a diamond point was difficult for dental students. The using of the dental skill simulation training system had advantages to be possible to confirm the technical level objectively to evaluate the tooth reduction into the numerical value however the dispersion of reduction value had so much wide range that the standardize to measure points on the operating hand prevented from stabilizing.