An in vitro study of two kinds of root apex locators to diagnose vertical root fracture 2种根尖定位仪诊断牙根纵裂的实验研究
Using Laplace and Fourier transform, I type dynamic fracture apex mechanical strength factors of composites are analyzed, the composite having penetrating fracture while loaded by dynamic load. 本文综合利用Laplace变换和Fourier变换,从理论上分析了含有贯穿裂纹的层合复合材料,在动载荷作用下裂纹尖端的Ⅰ型动态应力强度因子;
Application of root apex locator to diagnose vertical root fracture 根尖定位仪应用于牙根纵裂的临床诊断
The most familiar injuries are disease of terminal apex patella, the injury of ankle ligament, the fracture of the forearm, palm, fingers and toes. 最为常见的是髌尖末端病、踝关节韧带损伤、前臂、掌、指趾骨折、指趾关节损伤。
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。