上颌侧切牙和尖牙高度变化对微笑美观影响的审美评价

摘要

目的:研究上颌侧切牙和尖牙高度改变对微笑审美的影响,了解正畸医生与患者对前牙美学区的审美偏好.方法:应用Photoshop软件通过改变前牙区侧切牙和尖牙高度来改变微笑时前牙区形态,获得的20张图片由31名正畸医生(专业组)和56名患者(患者组)对其进行Likert审美评分.结果:专业组和患者组都认为未经改变的原始图片是美观的;患者组对尖牙伸长的接受度高于专业组,而专业组对侧切牙减小的接受度高于患者组;患者组评价结果的离散程度大于专业组,并且对前牙美学区的审美比专业组苛刻.结论:医生认为美观的前牙不一定为患者所认同,正畸医生在正畸治疗前有必要了解患者对前牙美学区牙冠形态的审美偏好.%Objective:To investigate the effect of different crown heights of lateral incisor and canine on smile esthetics perception between orthodontists and patients.Methods:A total of 31 orthodontists and 56 patients on smile aesthetics perception were investigated.We adjusted the height of lateral incisor and canine to get 20 kinds of anterior tooth area morphology by Photoshop and asked interviewees to grade.Scores of satisfaction were recorded by Likert method.Results:Subjects in the 2 groups preferred smiles with upper anterior teeth edge parallel to lower lip.There was better acceptance for longer canines and less satisfaction at shorter lateral incisors in patients.Patients also got higher discrete degree of evaluation results and more rigorous about smile esthetics than orthodontists.Conclusion:Orthodontists and patients have different satisfaction at esthetics of anterior teeth.Esthetics preference should be considered in orthodontic treatment schedule.