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目的探讨微种植钉在安氏Ⅱ类错的临床应用效果。方法研究对象为2010年2月至2012年2月我院接诊的28例安氏Ⅱ类错畸形患者,均实施微种植钉治疗,测量并分析正畸相关指标。结果治疗前后的ANB角、Ls-E(上唇突距Sn)、FH to UI(上前牙和FH平面的夹角)、IMPA(下切牙和下颌平面的夹角)等指标的变化可以表明,矫治效果较好,差异均有统计学意义(P<0.05)。结论微种植钉应用于安氏Ⅱ类错,可发挥较好的矫治效果,是此类患者首选支抗方案。
Objective To investigate the clinical effect of micro-implant nailing in class Ⅱ malocclusion. Methods From February 2010 to February 2012, 28 cases of Class Ⅱ malocclusion admitted to our hospital were treated with micro-implanting nail. The indexes related to orthodontics were measured and analyzed. Results The changes of ANB angle, Ls-E (upper lip protrusion Sn), FH to UI (included angle between anterior and FH planes) and IMPA (included angle between inferior incisor and mandibular plane) before and after treatment showed that, Correction effect is better, the difference was statistically significant (P <0.05). Conclusion Microdialysis nail used in class Ⅱ malocclusion, can play a good correction effect, is the preferred choice of patients with such programs.