Perception of chin asymmetries among ecuadorian orthodontists, specialist dentists, students and patients
Keywords:
perception, facial asymmetry, chin, aesthetics, orthodontics.Abstract
Introduction: Previous studies have shown differences in the perception of dental and facial asymmetries between dental professionals and non-experts. However, the literature on differences in the perception of chin asymmetries is limited.
Objective: Compare the aesthetic perception of chin asymmetries among orthodontists, specialist dentists, students and patients of the Faculty of Dentistry of the Central University of Ecuador.
Methods: Observational, analytical and cross-sectional study. The universe was made up of 36 orthodontists, 77 specialist dentists, 96 students and 2580 patients from this Faculty. The sample size was 30 participants for each group. The transverse position of the chin was digitally modified from 0° to 6° in the photographs of two Ecuadorian subjects (male-female). The evaluation was carried out by means of an analogous visual scale.
Results: The photographs of asymmetries of the chin with 0° of deviation were qualified as very aesthetic and the asymmetries with 6° were unsightly for the four groups. Orthodontists, specialist dentists and students considered as an aesthetic limit the 2nd deviation of the chin for the photography of the female and male subject. The aesthetic limits were 2° of deviation for the female subject and 3° for the male subject. Significant differences were found between the groups of evaluators and the photographs (p < 0.05).
Conclusions: Orthodontists perceived facial aesthetics close to the norm of chin asymmetry, which has an important role in the perception of facial aesthetics.
Downloads
References
Kaipainen AE, Sieber KR, Nada RM, Maal TJ, Katsaros C, Fudalej PS. Regional facial asymmetries and attractiveness of the face. Eur J Orthod. 2016;38(6):602–8. doi: 10.1093/ejo/cjv087
Broer PN, Juran S, Liu YJ, Weichman K, Tanna N, Walker ME, et al. The impact of geographic, ethnic, and demographic dynamics on the perception of beauty. J Craniofac Surg. 2014;25(2):157–61. doi: 10.1097/SCS.0000000000000406
Van Der Geld P, Oosterveld P, Van Heck G, Kuijpers-Jagtman AM. Smile attractiveness: Self-perception and influence on personality. Angle Orthod. 2007;77(5):759–65. doi: 10.2319/082606-349
Langlois JH, Kalakanis L, Rubenstein AJ, Larson A, Hallam M, Smoot M. Maxims or myths of beauty? A meta-analytic and theoretical review. Psychol Bull. 2000;126(3):390–414. doi: 10.1037/0033-2909.126.3.390
Dion K, Berscheid E, Walster E. What is beautiful is good. J Pers Soc Psychol. 1972;24(3):285–90. doi: 10.1037/h0033731
Wang TT, Wessels L, Hussain G, Merten S. Discriminative thresholds in facial asymmetry: A review of the literature. Aesthetic Surg J. 2017;37(4):375–85. doi: 10.1093/asj/sjw271
Srivastava D, Singh H, Mishra S, Sharma P, Kapoor P, Chandra L. Facial asymmetry revisited: Part II–Conceptualizing the management. J Oral Biol Craniofacial Res [Internet]. 2018 [citado 2020 Dic 28];8(1):15–9. Disponible en: https://doi.org/10.1016/j.jobcr.2017.09.008
Manosudprasit M, Manosudprasit A. Dentofacial Asymmetry : A Literature Review. J Med Assoc Thai [internet] 2017 [citado 2020 Dic 28];100(10):50–60. Disponible en: https://kkucleft.kku.ac.th/research/JMAT_FINAL/JMED2017/JMED6016.pdf
Alrbata RH, Alfaqih AK, Almhaidat MR, Al-Tarawneh AM. Thresholds of abnormality perception in facial esthetics among laypersons and dental professionals: Frontal esthetics. Int J Dent. 2020; doi: 10.1155/2020/8946063
Volpato GH, de Almeida-Pedrin RR, Oltramari PVP, Freire Fernandes TM, de Almeida MR, de Castro Ferreira Conti AC. Self-perception of facial esthetics by patients with different profiles compared with assessments of orthodontists and lay people. Am J Orthod Dentofac Orthop. 2020;1–9. doi: https://doi.org/10.1016/j.ajodo.2019.10.027
Alhammadi MS. Perception of facial esthetics by laypersons, dental assistants, general dental practitioners and dental specialists. J Contemp Dent Pract. 2019;20(3):304–10. PMID: 31204322
Al-Saleh SA, Al-Shammery DA, Al-Shehri NA, Al-Madi EM. Awareness of dental esthetic standards among dental students and professionals. Clin Cosmet Investig Dent. 2019;11:373–82. doi: 10.2147/CCIDE.S224400
Jarosz KF, Bosio JA, Bloomstein R, Jiang SS, Vakharia NS, Cangialosi TJ. Perceptions of chin asymmetries among dental professionals and laypersons. Am J Orthod Dentofac Orthop [Internet]. 2018 [citado 2019 Sep 20];154(2):201–12. Disponible en: https://doi.org/10.1016/j.ajodo.2017.11.029
Rostami S, Kang B, Tufekci E, Stilianoudakis SC, Carrico CK, Laskin DM. Recognition of the Asymmetrical Smile: A Comparison of Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons. J Oral Maxillofac Surg [Internet]. 2020 [citado 2020 Dic 28];78(2):275–83. Disponible en: https://doi.org/10.1016/j.joms.2019.08.023
Chu EA, Farrag TY, Ishii LE, Byrne PJ. Threshold of visual perception of facial asymmetry in a facial paralysis model. Arch Facial Plast Surg. 2011;13(1):14–9. doi: 10.1001/archfacial.2010.101
Dong T, Ye N, Yuan L, Wu S, Xia L, Fang B. Assessing the Influence of Chin Asymmetry on Perceived Facial Esthetics With 3-Dimensional Images. J Oral Maxillofac Surg [Internet]. 2020;78(8):1389–96. Disponible en: https://doi.org/10.1016/j.joms.2020.03.017
Naini FB, Donaldson ANA, Cobourne MT, McDonald F. Assessing the influence of mandibular prominence on perceived attractiveness in the orthognathic patient, clinician, and layperson. Eur J Orthod. 2012;34(6):738–46. doi: 10.1093/ejo/cjr098
Duran GS, Taşdelen FÖ, Dindaroğlu F. Effect of facial profile convexity on the perception of mandibular asymmetry using three-dimensional stereophotogrammetric images. Orthod Craniofacial Res. 2020;23(1):110–7. doi: 10.1111/ocr.12349
Meyer-Marcotty P, Stellzig-Eisenhauer A, Bareis U, Hartmann J, Kochel J. Three-dimensional perception of facial asymmetry. Eur J Orthod. 2011;33(6):647–53. doi: 10.1093/ejo/cjq146
Silva B, Jimenez-Castellanos E, Martinez-de-Fuentes R, Greenberg J, Chu S. Laypersons’ Perception of Facial and Dental Asymmetries. Int J Periodontics Restorative Dent. 2013;33(6):e162–71. doi: 10.11607/prd.1618
Downloads
Published
How to Cite
Issue
Section
License
Authors retain all rights to their works, which they can reproduce and distribute as long as they cite the primary source of publication.
The Rev Cubana Estomatol is subject to the Creative Commons Attribution-Non-Commercial 4.0 International License (CC BY-NC 4.0) and follows the publication model of SciELO Publishing Schema (SciELO PS) for publication in XML format.
You are free to:
- Share — copy and redistribute the material in any medium or format.
- Adapt — remix, transform, and build upon the material.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
- You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
- No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
Download PDF
