Golfeshan Farzaneh, Nasseri Mojarad Athar, Sardarian Ahmad Reza
Dept. of Orthodontics, School of Dentistry Orthodontic Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Orthodontics Research Center, School Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
J Dent (Shiraz). 2024 Jun 1;25(2):169-177. doi: 10.30476/dentjods.2023.97251.2003. eCollection 2024 Jun.
The position of the chin and lips are important components in the lower third of the face and can be changed by orthodontic treatment. It seems that factors such as diversity in culture, ethnicity, and place of residence are among the factors affecting people's perception of beauty. Iran, as a vast country, contains different ethnicities and cultures, and of course, it is not exempt from this point of view.
Our purpose of conducting this study is to investigate the impact of the difference in living environment and culture on people's aesthetic perception. Orthodontists and oral surgeons can use these data to choose the best treatment plan for the patients according to their geographical zones.
A descriptive cross-sectional study was conducted to evaluate the perception of lips and chin position. A series of 25 profile images were prepared in 5 sets. Each set contained 5 profile images. Northern and Southern lay people and orthodontists were asked to evaluate the profile series of each set in 1 session and score them from 1 to 5: 1, very unattractive; 2, unattractive; 3, neither attractive nor unattractive; 4, attractive; or 5, very attractive.
652 participants in 3 groups, including 16 orthodontists (10 men and 6 women), 318 lay people of the North of Iran (172 men and 138 women), and 318 lay people of the South of Iran (175 men and 139 women) participated in this study. Regardless of the chin position, normal lip position and slight changes of that (in both protruded and retruded positions) were more favorable for all three groups. The images with moderately retruded lips were scored as the least attractive by all three groups and orthodontist gave the lowest score to these profiles. Southern people could better tolerate moderately retruded lips than other two groups. In the fifth series, orthodontists preferred slightly and moderately protruded lips in comparison to other two groups of laypeople.
Regardless of the chin position, normal and slightly (-2mm to +2mm) protruded and retruded lips were more favorable in all three groups. Southern people could better tolerate moderately retruded lips than the two other groups.
下巴和嘴唇的位置是面部下三分之一的重要组成部分，并且可以通过正畸治疗改变。文化、种族和居住地点的多样性等因素似乎是影响人们审美观念的因素。伊朗作为一个幅员辽阔的国家，包含不同的种族和文化，当然，从这个角度来看也不例外。
我们开展这项研究的目的是调查生活环境和文化差异对人们审美观念的影响。正畸医生和口腔外科医生可以利用这些数据，根据患者所在的地理区域为其选择最佳治疗方案。
进行了一项描述性横断面研究，以评估对嘴唇和下巴位置的认知。准备了25张侧面图像，分为5组。每组包含5张侧面图像。要求伊朗北部和南部的普通民众以及正畸医生在一次评估中对每组侧面图像系列进行评估，并从1到5分进行评分：1分，非常不美观；2分，不美观；3分，既不美观也不丑；4分，美观；或5分，非常美观。
3组共652名参与者，包括16名正畸医生（10名男性和6名女性）、318名伊朗北部普通民众（172名男性和138名女性）以及318名伊朗南部普通民众（175名男性和139名女性）参与了本研究。无论下巴位置如何，正常的嘴唇位置以及其轻微变化（前突和后缩位置）对所有三组都更有利。嘴唇中度后缩的图像在所有三组中得分最低，正畸医生对这些侧面图像给出的分数最低。与其他两组相比，南部民众对嘴唇中度后缩的耐受性更好。在第五组中，与其他两组普通民众相比，正畸医生更喜欢轻微和中度前突的嘴唇。
无论下巴位置如何，正常以及轻微（-2毫米至+2毫米）前突和后缩的嘴唇在所有三组中都更有利。与其他两组相比，南部民众对嘴唇中度后缩的耐受性更好。
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