Shell Tracey L, Woods Michael G
The University of Melbourne, Australia.
Angle Orthod. 2003 Aug;73(4):365-73. doi: 10.1043/0003-3219(2003)073<0365:POFEAC>2.0.CO;2.
In recent years, there has been considerable interest in the esthetic outcomes of various types of Class II treatment. In this study, it was the authors' intent to determine the esthetic outcomes for 60 Class II division 1 patients: 28 patients treated during the active growth phase with an activator and fixed appliances and 32 patients treated at the completion of growth with fixed appliances and by orthognathic surgery. Using a visual analogue scale, a mixed panel of 14 judges scored the pre- and posttreatment attractiveness of these patients from frontal and lateral facial photographs. Statistical analysis by two-sample t-tests indicated that, on average, esthetic scores improved with treatment, regardless of the treatment modality. There was, however, considerable individual variation in the degree of improvement, even to the point that there was a decline in esthetics for some patients. Despite somewhat different modes of treatment, it was found that neither the average pre- and posttreatment esthetic scores nor the change in esthetic score with treatment was significantly different for the two groups. Although clinical planning decisions should still be made on an individual basis, the findings of this study suggest that the perceived esthetic outcome in many Class II division 1 patients may well be just as favorable, regardless of whether they are managed early during the growth phase or later, at the completion of growth by orthognathic surgery.
近年来，人们对各类安氏II类错合畸形治疗的美学效果有着浓厚兴趣。在本研究中，作者旨在确定60例安氏II类1分类患者的美学效果：28例患者在生长活跃期使用肌激动器和固定矫治器进行治疗，32例患者在生长完成后使用固定矫治器和正颌外科手术进行治疗。14名评判员组成的混合小组通过视觉模拟量表，根据患者治疗前后的正面和侧面面部照片对其吸引力进行评分。双样本t检验的统计分析表明，平均而言，无论采用何种治疗方式，美学评分均随治疗而改善。然而，改善程度存在相当大的个体差异，甚至有些患者的美学效果出现下降。尽管治疗方式有所不同，但发现两组患者治疗前后的平均美学评分以及美学评分的变化均无显著差异。虽然临床治疗方案仍应根据个体情况制定，但本研究结果表明，许多安氏II类1分类患者的美学效果可能同样良好，无论他们是在生长早期还是后期，即生长完成后通过正颌外科手术进行治疗。
