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目的分析“2×6”方丝弓矫治技术结合平面导板方法矫治恒牙早期安氏Ⅱ2错的疗效。方法对2005—2009年在我科就诊的24例安氏Ⅱ2患儿,采用“2×6”方丝弓矫治技术结合平面导板矫治方法,并对矫治前后患儿X线头影测量结果进行分析。结果矫治后,FMA角、U1-SN角、U1-NA距、L1-NB距分别增加了4.3°、9.5°、3.8mm、3.9mm,FMIA角、U1-L1角分别减少4.5°、9.0°,与矫治前比较差异有统计学意义(P<0.01)。结论 “2×6”方丝弓矫治技术结合平面导板方法矫治恒牙早期安氏Ⅱ2错临床效果明显,是一种较为理想的矫治方法。
Objective To analyze the effect of “2 × 6” square wire arch correction combined with planar guide plate method in the treatment of early Angle Ⅱ 2 malocclusion in permanent teeth. Methods Twenty-four patients with Angle Ⅱ 2 who were treated in our department from 2005 to 2009 were treated with “2 × 6” square wire arch technique combined with planar guide plate method. The results of X-cephalometry before and after treatment analysis. Results The angles of FMA, U1-SN, U1-NA and L1-NB increased by 4.3 °, 9.5 °, 3.8mm and 3.9mm, respectively. The angles of FMIA and U1-L1 decreased by 4.5 ° and 9.0 °, respectively , Compared with the pre-treatment difference was statistically significant (P <0.01). Conclusion “2 × 6” square wire arch correction technique combined with planar guide plate method for the treatment of Angle Ⅱ 2 malocclusion early permanent clinical effect is obvious, is an ideal method of treatment.