Cacciatore Giorgio, Alvetro Lisa, Defraia Efisio, Ghislanzoni Luis Tomas Huanc, Franchi Lorenzo
Department of Human Morphology and Biomedical Sciences, School of Dentistry, University of Milan, Milan, Italy.
Department of Orthodontics, Case Western Reserve University, Cleveland, OH, USA.
Korean J Orthod. 2014 May;44(3):136-42. doi: 10.4041/kjod.2014.44.3.136. Epub 2014 May 19.
To evaluate the active-treatment effects of the Forsus fatigue resistant device (Forsus) during comprehensive correction of Class II malocclusion in growing patients.
Fifty-four patients (mean age, 12.5 ± 1.2 years) with Class II division 1 malocclusion were consecutively treated with fixed app-liances in combination with Forsus. Lateral cephalograms were analyzed at the beginning of the fixed treatment (T1), Forsus insertion (T2), its removal (T3), and end of the comprehensive therapy (T4). Statistical comparisons were carried out by repeated-measures ANOVA with Tukey's post-hoc test (p < 0.05).
The overall therapeutic effects were mainly dentoalveolar and occurred mostly during the active treatment with Forsus (T2-T3, mean duration = 0.5 ± 0.1 years). The overjet and overbite decreased significantly (-3.5 and -1.5 mm, respectively) and the molar relationship improved by 4.3 mm. These changes were associated with significant retroclination of the maxillary incisors (-3.1°), proclination and intrusion of the mandibular incisors (+5.0° and -1.5 mm, respectively), and mesialization of the mandibular molars (+2.0 mm).
Forsus had mainly dentoalveolar effects and contributed largely to the overall therapeutic outcome.
评估Forsus抗疲劳矫治器(Forsus)在生长发育期患者Ⅱ类错牙合畸形综合矫治过程中的积极治疗效果。
54例Ⅱ类1分类错牙合畸形患者(平均年龄12.5±1.2岁)连续接受固定矫治器联合Forsus治疗。在固定治疗开始时(T1)、Forsus矫治器戴入时(T2)、Forsus矫治器拆除时(T3)以及综合治疗结束时(T4)拍摄头颅侧位片进行分析。采用重复测量方差分析及Tukey事后检验进行统计学比较(p<0.05)。
总体治疗效果主要体现在牙牙槽骨方面,且大多发生在使用Forsus进行积极治疗期间(T2-T3,平均持续时间=0.5±0.1年)。覆盖和覆牙合显著减小(分别为-3.5和-1.5mm),磨牙关系改善了4.3mm。这些变化与上颌切牙显著舌倾(-3.1°)、下颌切牙唇倾和压低(分别为+5.0°和-1.5mm)以及下颌磨牙近中移动(+2.0mm)有关。
Forsus主要产生牙牙槽骨效应,对整体治疗效果有很大贡献。