CAJ | 학술논문

目的：探究C轴（ SM的长度）对于成人上颌骨矢状向发育的评价意义。方法选择上颌前突（ SNA≥84°），上颌正常（80°≤SNA≤84°），上颌后縮（SNA≤80°）的患者各40例。分别头影测量三组患者SM的长度，并进行相互比较。结果上颌前突（82．60±2．24）mm ，上颌后缩（74．67±1．89）mm，上颌正常（79．28±2．33）mm。上颌前突与上颌正常及上颌正常与上颌后缩的差异无显著意义（P＞0．05），上颌前突与上颌后缩的差异有显著意义（P＜0．05）。结论 C轴（SM的长度）对于成人上颌骨矢状向发育状况的评价有一定的意义。
목적：탐구C축（ SM적장도）대우성인상합골시상향발육적평개의의。방법선택상합전돌（ SNA≥84°），상합정상（80°≤SNA≤84°），상합후축（SNA≤80°）적환자각40례。분별두영측량삼조환자SM적장도，병진행상호비교。결과상합전돌（82．60±2．24）mm ，상합후축（74．67±1．89）mm，상합정상（79．28±2．33）mm。상합전돌여상합정상급상합정상여상합후축적차이무현저의의（P＞0．05），상합전돌여상합후축적차이유현저의의（P＜0．05）。결론 C축（SM적장도）대우성인상합골시상향발육상황적평개유일정적의의。
Objective To evaluate C-axis in the development of adult maxilla in sagittal plane .Methods Maxillary pro-trusion(SNA≥84°)40 cases, normal maxillary(80°≤SNA≤84°)40 cases, and maxillary retrusion(SNA≤80°)40 cases were enrolled in the current study .Length of the C-axis was measure and compared among the three groups .Results The mean values were maxillary protrusion (82.60 ±2.24) mm, normal maxillary (79.28 ±2.33) mm, maxillary retrusion (74.67 ±1.89) mm.Changes between normal Maxillary , maxillary protrusion and maxillary retrusion showed no signifi-cant difference(P >0.05).However, maxillary protrusion and maxillary retrusion showed significant difference (P <0.05).Conclusion C-Axis is a useful way for evaluating development of adult maxilla in sagittal plane .