Pithon Matheus Melo, Lacerda-Santos Rogério, Oliveira Danillo Lyrio de, Alves Janaína Viana, Britto Joyce Pereira, Souza Eduardo da Silva, Alves Leandro Pereira, Barbosa George, Coqueiro Raildo da Silva, Santos Alex Ferreira Dos
Departamento de Ortodontia, Curso de Odontologia, Universidade Estadual do Sudoeste da Bahia, Jequié, BA, Brazil.
Departamento de Clínica Infantil, Curso de Odontologia, Universidade Federal de Campina Grande, Patos, PB, Brazil.
Braz Oral Res. 2015;29. doi: 10.1590/1807-3107BOR-2015.vol29.0043. Epub 2015 Feb 16.
The objective of this article was to investigate the perception of esthetic changes in the facial profile of bilateral Class II patients treated with the Modified Thurow Appliance for extraoral treatment. Silhouettes were traced of profiles of patients who initially presented a bilateral Class II molar relationship and who, post-treatment, presented molars in a Class I relationship. Three groups were formed: the first composed of patients with maxillary protrusion (SNA >84°), the second with maxillary retrusion (SNA <80°), and the third with a well-positioned maxilla (SNA 80-84°). A panel of 200 lay evaluators judged the profile esthetics by a randomized drawing of the silhouettes. The multiple analysis results showed that the profile esthetic scores for the three positions of the maxilla were greatly influenced by significant interactions with the characteristics (like sex and age) of the evaluators: retrusive maxilla (Score *Age Group, p < 0.001), normal maxilla (Score *Sex, p = 0.024; Score *Age Group, p = 0.050) and protrusive maxilla (Score *Age Group, p < 0.001). It was observed that the profile of Class II patients with protrusion, normal relationship and retrusion of the maxilla, improved in their esthetic post-treatment result; however, the evaluators showed greater satisfaction with the groups of protrusion and normal position of the maxilla. The Modified Thurow Appliance provided significant improvements in the esthetics of the profile of patients who presented protrusion and normal position of the maxilla. However, its use was not the best treatment option for patients with maxillary retrusion.
本文的目的是研究使用改良图罗矫治器进行口外治疗的双侧安氏II类患者对面部侧貌美学变化的感知。描绘了最初呈现双侧安氏II类磨牙关系且治疗后呈现安氏I类磨牙关系的患者的侧貌轮廓。形成了三组：第一组由上颌前突（SNA>84°）的患者组成，第二组由上颌后缩（SNA<80°）的患者组成，第三组由上颌位置正常（SNA 80 - 84°）的患者组成。由200名普通评估者组成的小组通过随机抽取轮廓来评判侧貌美学。多元分析结果表明，上颌三个位置的侧貌美学评分受评估者特征（如性别和年龄）的显著交互作用影响很大：上颌后缩（评分年龄组，p<0.001）、正常上颌（评分性别，p = 0.024；评分年龄组，p = 0.050）和上颌前突（评分年龄组，p<0.001）。观察到上颌前突、关系正常和后缩的安氏II类患者的侧貌在治疗后的美学效果有所改善；然而，评估者对上颌前突和正常位置组表现出更高的满意度。改良图罗矫治器显著改善了上颌前突和位置正常的患者的侧貌美学。然而，对于上颌后缩的患者，使用该矫治器并非最佳治疗选择。
