已知水平刷法（垂直牙齿）会造成最严重的牙齿表面磨耗。
Horizontal brushing at right angles to the vertical axis of the teeth result in the severest loss of tooth substance.
结果：随着磨耗程度的加重，髁状突表面的应力增加较多。
Results: the stresses on the surface of the condyle increased obviously as the tooth wear aggravated.
研究了一种新型的钙云母为主相高强度的可切削玻璃陶瓷的力学性能、可加工性、表面耐腐蚀性、耐磨耗性。
Mechanical strength, machinability, surface corrosive and wear abrasion of a new type glass ceramic composed of fluorophlgopite Ca-mice were studied in this article.
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