| 摘要: |
| [摘要] 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。 |
| 关键词: M点 C轴 上颌骨 头影测量 |
| DOI：10.11724/jdmu.2014.03.19 |
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| 基金项目: |
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| C-axis - Evaluation of the adult maxilla in sagittal plane |
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WEI Zi-ming 1，LIU Yan 1，MI Cong-bo 1，CHANG Xin 21,2
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1.Department of Stomatology,the Second Affiliated Hospital of Dalian Medical University,Dalian 116027,China;2.Department of Stomatology, the First Affiliated Hospital of XinJiang Medical University,Wulumuqi 830000,China
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| Abstract: |
| [Abstract] Objective To evaluate C-axis in the development of adult maxilla in sagittal plane. Methods Maxillary protrusion（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 significant 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. |
| Key words: [Key words] M point C-axis maxilla cephalometric |
