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  • Title: Aesthetic perception and factors associated with dentofacial midline awareness.
    Author: Guo C, Zhou C, Quan C, Wang Y, Fan M, Wang W, Bao B.
    Journal: Aust Orthod J; 2013 May; 29(1):96-104. PubMed ID: 23785943.
    Abstract:
    AIMS: To examine orthodontic patients' aesthetic perception and factors likely to influence the detection of a dentofacial midline discrepancy. METHODS: An electronic questionnaire was designed to invite an orthodontic population to evaluate and select an ideal value, a detectable value and a tolerable value from a series of images exhibiting a dentofacial midline discrepancy. A binary logistic regression analysis was performed to evaluate possible influencing factors. RESULTS: A barely discernabe dentofacia midline discrepancy ranged between -0.020 +/- 0.38 mm. The personal characteristics of the evaluators appeared to have no appreciable effect at this level. A detectable value was 1.33 +/- 0.63 mm and the education level, orthodontic history and malocclusion severity were influencing factors amongst the assessors. A tolerable value was 2.63 +/- 0.94 mm and influencing factors included the education level and the malocclusion severity of the evaluators. CONCLUSION: The barely discernable value, detectable value and tolerable value could be used to quantify the aesthetic perception of orthodontic patients regarding a dentofacia midline discrepancy. The aesthetic perception was influenced by observer education level, orthodontic history and personal malocclusion severity, but not by age, gender, and subjective evaluation of dentofacial appearance.
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