Coleman Grant G, Lindauer Steven J, Tüfekçi Eser, Shroff Bhavna, Best Al M
Department of Orthodontics, School of Dentistry, Virginia Commonwealth University, Richmond 23298-0566, USA.
Am J Orthod Dentofacial Orthop. 2007 Jul;132(1):36-42. doi: 10.1016/j.ajodo.2005.07.025.
The purpose of this study was to determine the influence of chin prominence on preferred lip position in profile.
Five "male" and 5 "female" silhouette profiles differing only in the degree of mandibular retrognathism or prognathism (-25 degrees, -18 degrees, -11 degrees, -4 degrees , and +3 degrees facial contour angles) were created. Using a computer animation program, the evaluators moved the upper and lower lips independently into the positions they deemed to be the most esthetic for each profile. The evaluators included white male and female adolescent orthodontic patients, parents of patients, and orthodontists.
In general, no differences in preferred lip position were found between the -11 degrees and -4 degrees profiles or between the -18 degrees and +3 degrees profiles, but preferences for each of the 3 profile groupings (-11 degrees and -4 degrees, -18 degrees and +3 degrees, and -25 degrees) were different. Fuller lip positions were preferred for the more extreme retrognathic and prognathic profiles, whereas more retrusive lip positions were preferred for the more average profiles. No differences were found among the 3 evaluator groups or between male and female evaluators. Scattered differences were found among lip preferences for male and female profiles.
本研究的目的是确定颏部突度对侧面观时唇部理想位置的影响。
创建了五个“男性”和五个“女性”侧面轮廓剪影，它们仅在下颌后缩或前突程度（面部轮廓角度分别为-25度、-18度、-11度、-4度和+3度）上有所不同。使用计算机动画程序，评估者将上唇和下唇分别移动到他们认为每个轮廓最美观的位置。评估者包括白人青少年正畸患者、患者家长和正畸医生。
一般来说，-11度和-4度轮廓之间或-18度和+3度轮廓之间在唇部理想位置上没有差异，但三个轮廓分组（-11度和-4度、-18度和+3度以及-25度）各自的偏好不同。对于更极端的后缩和前突轮廓，更喜欢丰满的唇部位置，而对于更普通的轮廓，更喜欢更后缩的唇部位置。在三个评估者组之间或男性和女性评估者之间没有发现差异。在男性和女性轮廓的唇部偏好之间发现了一些差异。
