Tooth fracture 牙折断 ; 牙齿折断 ; 牙折
tooth root fracture 牙根折断
Fracture of tooth 创伤性牙折断 ; 牙折断
saw tooth fracture 锯齿状断口
Objective To estimate the effect of restorative treatment on conserving posterior crown fracture tooth.
目的：评估用修复的方法保存后牙牙冠纵裂牙齿的效果。
Fracture tooth of gear shaft in well drilling pump was analysed by chemical analysis, mechanical testing metallographic examination macro and microfractography.
采用化学成分分析、力学性能测定、金相检验以及断口宏、微观分析等方法，对钻井泵齿轮轴断齿进行了分析。
Two types of load were applied to investigate the change of tooth fracture resistance after restored with MOD inlay.
目的：对直接树脂和间接树脂嵌体修复后牙体的抗力进行三维有限元研究。
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