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.
涂景秋，袁韵仪，颜子淇，雷勇华. 上颌侧切牙和尖牙高度变化对微笑美观影响的审美评价[J]. 中南大学学报(医学版), 2018, 43(3): 301-305.
TU Jingqiu, YUAN Yunyi, YAN Ziqi, LEI Yonghua. Esthetic evaluation of frontal smile on different crown heights of lateral incisor and canine. Journal of Central South University(Medical Scienc, 2018, 43(3): 301-305.