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目的观察拔除上颌第二磨牙矫治上颌前突畸形的临床效果。方法选择2009—2011年在厦门市第一医院思明分院口腔科就诊的安氏Ⅱ类错上颌前突患者13例,拔除上颌第二磨牙后,采用直丝弓矫治器矫治。治疗后进行头影测量分析,并观察疗效。结果 13例患者经过矫治后上前牙内收,下前牙轻度唇倾,牙齿排列整齐,双侧磨牙中性关系,前牙覆牙合、覆盖关系正常,与治疗前比较患者面型改善明显,患者对治疗结果满意。X线头影测量分析结果可见,治疗前、后U1-NA距和U1-NA角差异均有统计学意义(P<0.05)。结论拔除上颌第二磨牙矫治上颌前突畸形疗效好且稳定,值得临床推广应用。
Objective To observe the clinical effect of maxillary second molar removal maxillary protrusion deformity. Methods Thirteen patients with Class Ⅱ malocclusion of maxillary protrusion treated in Department of Stomatology, Siming Branch of Xiamen First Hospital from 2009 to 2011 were selected and treated with straight wire appliance after removal of maxillary second molars. After treatment, cephalometric analysis, and observe the effect. Results In the 13 patients, the anterior teeth adduction, mild lip declination of the lower anterior teeth, neat teeth arrangement, bilateral molar bilateral relationship, anterior teeth overbite, covering the relationship between normal and before treatment, patients with improved surface shape Obviously, the patient is satisfied with the outcome of the treatment. X-cephalometry analysis results show that before and after treatment U1-NA and U1-NA angle differences were statistically significant (P <0.05). Conclusion Removal of the maxillary second molar treatment of maxillary protrusion deformity is good and stable, worthy of clinical application.