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目的探讨矫治替牙期前牙反合的方法。方法对20例替牙期前牙反合患儿应用2×4矫治技术配合Ⅲ类颌间牵引矫治替牙期前牙反合的临床资料进行回顾性分析。结果 20例替牙期前牙反合患儿经2×4技术配合Ⅲ类牵引矫治后均取得满意效果,患者前牙反合全部解除,其中19例治愈,1例好转。SNB角治疗前平均(82.6±1.9)°,治疗后为(78.9±2.2)°,2组比较差异有统计学意义(P<0.05)。结论 2×4矫治技术配合Ⅲ类牵引,能有效解除前牙反合,改善面型,促进上颌骨的生长发育,抑制下颌前伸,是替牙期前牙反合矫治中一种方便、有效的矫治技术。
Objective To explore the method of correcting anterior teeth occlusion during dentition. Methods A retrospective analysis was performed on the clinical data of 20 cases of anterior teeth anti - synosis in children with 2 × 4 orthopedics and Ⅲ type intermaxillary traction. Results 20 cases of ankle anterior teeth anti-obese children by 2 × 4 technology with Class Ⅲ traction achieved satisfactory results, the anterior ligation of patients with all the lifting, of which 19 cases were cured, 1 case improved. The mean SNB angle was (82.6 ± 1.9) ° before treatment and (78.9 ± 2.2) ° after treatment. The difference between the two groups was statistically significant (P <0.05). Conclusion 2 × 4 orthodontic treatment combined with Class Ⅲ traction can effectively relieve anterior crossbite, improve facial features, promote the growth and development of the maxilla and inhibit mandibular advancement, which is a convenient and effective method for anterior teeth anti-orthodontic treatment The correction technology.