A modified reciprocating friction and wear tester was performed to evaluate the effect of the size and hardness of food particles on the three-body wear of human enamel.

• 在往复滑动摩擦磨损试验台上对比考察了三体磨粒磨损过程中,食物颗粒的粒度和硬度对人牙釉质摩擦学特性的影响。