【摘要】 本文报告了上、下颌第一恒磨牙各100例牙冠周径的测量方法以及通过数据处理比较牙冠的周径与同名牙有关解剖标志间的关系,得出上颌第一磨牙的周径与颊舌径最相关(p<0.01),下颌第一磨牙的周径与近远中径最相关(p<0.01)。可为制作和选择预成带环提供参考依据。更多还原

【Abstract】 This paper reported the measurements of 100 maxillary and 100 mandibular first perm-anent molar crowns circumference and compared the relationship with the crown circumfe-rence and dental referential anatomy data of the teeth by using statistical analysis of theresults.The results showed the most significant correlation between maxillary first perm-anent molar crown circumference and its buccolingnal diameter(P<0.01);between man-dibular first permanent molar crown circumference and its mesiodistal diameter(P<0.01).The results provided reference data for making and choosing pre-made band.更多还原