Dentoskeletal effects of functional appliances vs bimaxillary surgery in hyperdivergent Class II patients
Dentoskeletal effects of functional appliances vs bimaxillary surgery in hyperdivergent Class II patients
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DOI：
10.2319/060110-297.1
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发表时间：
2011-03-01
影响因子：
3.4
通讯作者：
Bayirli, Burcu
中科院分区：
文献类型：
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作者：
Ibitayo, Adebimpe O.;Pangrazio-Kulbersh, Valmy;Bayirli, Burcu
目的：比较治疗结果的增长和nongrowing II类患者的特点是下颌骨reversal和增加垂直dimensions.Materials和方法：17例（平均年龄9岁5个月）进行了治疗与Bionator制造后牙垫和高拉力头帽，而15例（平均年龄23岁6个月）接受了Le Fort I截骨上颌阻生和下颌前移。将这些组与来自博尔顿和密歇根生长研究的17名未接受治疗的对照受试者进行比较。将功能组在T1（初始记录）、T2（完成功能矫治器治疗）和T3（完成综合治疗）时拍摄的侧位头颅X线片与手术患者在T1（初始记录）、T2（术后即刻）和T3（术后1年）时拍摄的X线片进行比较。提出了功能组和手术组之间治疗结局无差异的零假设。采用混合设计方差分析比较组内和组间的变化。显著性设定为P
Objective: To compare treatment outcomes of growing and nongrowing Class II patients characterized by mandibular retrusion and increased vertical dimension.Materials and Methods: Seventeen patients (mean age 9 years 5 months) were treated with a Bionator fabricated with posterior bite block and high-pull headgear, while 15 patients (mean age 23 years 6 months) received Le Fort I osteotomy for maxillary impaction and mandibular advancement. These groups were compared with 17 nontreated control subjects from the Bolton and Michigan growth studies. Lateral cephalograms taken for the functional group at T1 (initial records), T2 (completion of functional appliance treatment), and T3 (completion of comprehensive treatment) were compared with radiographs taken at T1 (initial records), T2 (immediate post surgery), and T3 (1 year post surgery) for the surgical patients. A null hypothesis of no difference in treatment outcomes between the functional and surgical groups was proposed. A mixed-design analysis of variance was used to compare changes within and between groups. Significance was set at P