Obiective to study the application of root apex locator to diagnose vertical root fracture.
目的研究应用根尖定位仪诊断牙根纵裂。
Objective To discuss the combined treatment methods and curative effects for root apex granuloma.
目的探讨根尖肉芽肿的综合治疗措施与疗效。
The dead load shear and impact shear testing were performed from both of root apex direction and cutting edge direction.
测试了剪切力分别沿根尖方向和切缘方向作用的静剪切和冲击剪切强度。
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