常見例句雙語例句Conclusion The root canal therapy difficulty in Chinese mandibular permanent incisor is significantly with root canal anatomy.結論下頜恒切牙根管治療難度與根管解剖密切相關,根管治療難度較大。A case is reported in which two ectopic maxillary permanent canine teeth bypassed the lateral incisors and caused extensive resorption to both maxillary central incisor teeth.案件報告中,兩名常任異位上頜犬齒繞過側門,并造成了廣泛的骨吸收兩個上頜中切牙牙齒。syyxw.comMethods:The models of 3 dimensional finite element analysis (3 D FEA) of left upper permanent central incisor were designed by microtomy. Comparative studies of stress distribution were carried out.方法:采用切片法建立上頜左側恒中切牙的三維有限元模型,研究3 種瓷貼面復合體的應力分布。 返回 permanent incisor