| 戴用高位牵引头帽后高角患者的垂直向变化 |
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| 引用本文： | 欧阳莉,周彦恒,傅民魁,丁鹏. 戴用高位牵引头帽后高角患者的垂直向变化[J]. 中华口腔医学杂志, 2009, 44(1). DOI: 10.3760/cma.j.issn.1002-0098.2009.01.010 |
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| 作者姓名： | 欧阳莉 周彦恒 傅民魁 丁鹏 |
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| 作者单位： | 1. 首都医科大学口腔医学院正畸科,100050
2. 北京大学口腔医学院·口腔医院正畸科,100081 |
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| 摘 要： | 目的 评估高位牵引头帽对高角患者垂直向控制的有效性.方法 选择40例高角拔牙正畸患者(MP-SN角＞40°),进行高位牵引,分为控制组和对照组(每组各20例),分析14项头影测量项目,以配对t检验分析每组治疗前后数据,独立样本t检验分析两组治疗前后差值.结果 控制组与对照组相比,14项头影测量项目治疗变化的差异均无统计学意义(P＞0.05).控制组治疗后Y轴角、MP-SN角、MP-FH角及U6-PP距分别平均增加1.9°、1.5°、2.3°和1.1 mm,与治疗前相比,差异有统计学意义(P＜0.01).结论 高位牵引头帽不能为高角患者提供有效的垂直向控制.
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| 关 键 词： | 口外牵引器 正畸支抗 垂直向控制 |
A retrospective study for vertical control with high-pull headgear in the treatment of high angle cases |
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| OUYANG Li,ZHOU Yan-heng,FU Min-kui,DING Peng. A retrospective study for vertical control with high-pull headgear in the treatment of high angle cases[J]. Chinese journal of stomatology, 2009, 44(1). DOI: 10.3760/cma.j.issn.1002-0098.2009.01.010 |
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| Authors: | OUYANG Li ZHOU Yan-heng FU Min-kui DING Peng |
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| Abstract: | Objective To assess the effectiveness of vertical control with high-pull headgear in the treatment of high angle cases.Methods Forty high angle cases(MP-SN＞40°)were included in this study and all the patients were treated with extraction.Twenty patients in the study group and control group,respectively.Totally 14 cephalometric measurements were selected for the assessment.Paired t-test and indepeodent t-test were used in the analysis.Results No significant differences were found between the two groups(P＞0.05).In the study group,after treatment Y angle,MP-SN angle,MP-FH angle and U6-PP distance increased 1.9°,1.5°,2.3°and 1.1 mm,respectively(P＜0.01).Conclusions High-pull headgear could not provide effective vertical control in high angle cases. |
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| Keywords: | Extraoral traction appliances Orthodontic anchorage procedures Vertical control |
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