O'Brien Kevin, Macfarlane Tatiana, Wright Jean, Conboy Frances, Appelbe Priscilla, Birnie David, Chadwick Stephen, Connolly Ivan, Hammond Mark, Harradine Nigel, Lewis David, Littlewood Simon, McDade Catherine, Mitchell Laura, Murray Alison, O'Neill Julian, Sandler Jonathan, Read Micheal, Robinson Stephen, Shaw Iain, Turbill Elizabeth
School of Dentistry, University of Manchester, Manchester, United Kingdom. Kevin.O'
Am J Orthod Dentofacial Orthop. 2009 May;135(5):580-5. doi: 10.1016/j.ajodo.2008.02.020.
The aims of this study were to assess whether early Twin-block appliance treatment improves the attractiveness of Class II profiles and to determine the orofacial features of a profile that most influence the perception of attractiveness.
Silhouetted profiles of 20 treated patients and 20 untreated controls randomly selected from 174 subjects (ages, 8-10 years) of a randomized, controlled trial into the effectiveness of early Class II treatment were assessed by 30 children (ages, 10-11 years) and 24 teaching staff using a 5-point Likert scale. Independent samples t tests were used to compare attractiveness ratings between the treated and untreated groups. Linear regression was used to determine the features defining attractiveness.
Early orthodontic treatment resulted in improved perceptions of facial profile attractiveness. Profiles were likely to be rated as attractive if the overjet was smaller (P = 0.001) and no teeth showed (P <0.05).
Profile silhouettes of children who had received early orthodontic treatment for Class II malocclusion were perceived to be more attractive by peers than those of children who did not receive treatment.
本研究的目的是评估早期使用 Twin-block 矫治器治疗是否能改善二类面型的美观度,并确定对面型美观度感知影响最大的口面部特征。
从一项关于早期二类错颌治疗效果的随机对照试验的 174 名受试者(年龄 8 - 10 岁)中随机选取 20 名接受治疗的患者和 20 名未接受治疗的对照者的侧面剪影,由 30 名儿童(年龄 10 - 11 岁)和 24 名教职员工使用 5 点李克特量表进行评估。采用独立样本 t 检验比较治疗组和未治疗组的美观度评分。使用线性回归确定定义美观度的特征。
早期正畸治疗使对面部侧面美观度的感知得到改善。如果覆盖较小(P = 0.001)且无牙齿外露(P <0.05),则侧面轮廓更有可能被评为美观。
接受过早期二类错颌正畸治疗的儿童的侧面剪影,被同龄人认为比未接受治疗的儿童的侧面剪影更具吸引力。