Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons

Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons Publisher

Tayyebi K¹ ; Arab S² ; Razmara F³ ; Geramy A² ; Kharazifard M⁴ ; Kamali E²

Show Affiliations

1. Department of Pediatric Dentistry, Qazvin University of Medical Sciences, Qazvin, Iran
2. Department of Orthodontics, Tehran University of Medical Sciences, Tehran, Iran
3. Department of Oral and Maxillofacial Surgery, Tehran University of Medical Sciences, Tehran, Iran
4. Dental Research Centre, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Dental Research Journal Published:2023

Abstract

Background: Facial asymmetry is one reason orthodontic patients seek treatment. This study assessed the effect of mandibular asymmetry on facial esthetics and treatment needs perceived by laypersons, orthodontists, and maxillofacial surgeons. Materials and Method: In this descriptive cross-sectional study, the frontal image of a model was captured and symmetrized from the facial midline using Adobe Photoshop software. The mandible was rotated 0°-8° with 1° intervals. Images were presented to 41 laypersons, 39 orthodontists, and 29 surgeons using an online questionnaire. The observers rated each image's esthetics with a 0-100 Visual Analog Scale and determined their treatment need by choosing one of the following three choices: No need for treatment, needs treatment, acceptable, but better to be treated. Analysis of variance for repeated measurements model. The regression method, Kruskal-Wallis analysis, was used for statistical analysis and the level of significance was set as P < 0.05. Results: The images with 0° and 1° rotation received the highest esthetic rates among all three groups, while the images with 8° rotation were the least attractive ones. Furthermore, the image esthetic ratings significantly affected their treatment need. Mandibular asymmetry diagnosis threshold was 1° for orthodontists, and 3° for both laypersons and surgeons. The treatment need threshold was 5°, 6°, and 7° for surgeons, orthodontists, and laypersons, respectively. Conclusion: The esthetics of images decreased when mandibular asymmetry increased. Treatment need was also related to increased asymmetry. Orthodontists were the most sensitive group in diagnosis, while surgeons were the most sensitive ones when it came to treatment. © 2023 Wolters Kluwer Medknow Publications. All rights reserved.

Style	Citing Format
MLA	Tayyebi K, et al.. "Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons." Dental Research Journal, vol. 20, no. 1, 2023, pp. -.
APA	Tayyebi K, Arab S, Razmara F, Geramy A, Kharazifard M, Kamali E (2023). Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons. Dental Research Journal, 20(1), -.
Chicago	Tayyebi K, Arab S, Razmara F, Geramy A, Kharazifard M, Kamali E. "Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons." Dental Research Journal 20, no. 1 (2023): -.
Harvard	Tayyebi K et al. (2023) 'Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons', Dental Research Journal, 20(1), pp. -.
Vancouver	Tayyebi K, Arab S, Razmara F, Geramy A, Kharazifard M, Kamali E. Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons. Dental Research Journal. 2023;20(1):-.
BibTex	@article{ author = {Tayyebi K and Arab S and Razmara F and Geramy A and Kharazifard M and Kamali E}, title = {Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons}, journal = {Dental Research Journal}, volume = {20}, number = {1}, pages = {-}, year = {2023} }
RIS	TY - JOUR AU - Tayyebi K AU - Arab S AU - Razmara F AU - Geramy A AU - Kharazifard M AU - Kamali E TI - Perceptions of Mandibular Asymmetry Among Orthodontists, Oral and Maxillofacial Surgeons, and Laypersons JO - Dental Research Journal VL - 20 IS - 1 SP - EP - PY - 2023 ER -

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Abstract