Perceptions of orthodontically treated smile esthetics: a comparative evaluation of orthodontists, general dentists, and laypersons in Erbil city.

Authors

  • Isra Dilshad Rostum Department of POP, College of Dentistry, Tishk University, Erbil, Iraq.
  • Zana Omer Department of POP, College of Dentistry, Hawler Medical University, Erbil, Iraq.

DOI:

https://doi.org/10.15218/edj.2023.03

Keywords:

Smile, Smile Perception, Dental esthetic, Orthodontics, Mini-esthetics

Abstract

Background and Objective: Knowing the perception of a layperson will help an orthodontist to have an idea about acceptable smiles in our community. The study is aimed to evaluate and compare the smile perception among orthodontists, general dentists, and laypersons in a sample of Erbil city.

Method: Groups of variations made on an orthodontically treated smile picture. The ideal smile picture was purposefully altered to produce thirty-two more images with eight common anterior esthetic discrepancies in varying degrees of deviation. Crown length, Crown width, Incisor crown angulation, Midline, Open gingival embrasure, Buccal corridor, Occlusal plane, and Gingiva to lip distance. A close-ended questionnaire is prepared. In this study, 235 individuals from three groups of varying educational levels served as evaluators: general dentists, orthodontists, and laypersons.

Results: There is a significant difference in perception between groups. The orthodontists were more sensitive than the other two groups. Laypersons could only detect variations in crown length, width, and angulation. General dentists were second most perceptive except for gingiva to lip distance and buccal corridor. One-way ANOVA is used for statistical analysis and the Post Hoc LSD test is used for significant ANOVA.

Conclusion: The result of this study showed that there was a significant difference among the three groups of evaluators. Laypersons have a higher threshold level of acceptance than dentists and orthodontists. The most sensitive in detecting variations were orthodontists followed by General dentists.    

References

Baik KM, Anbar G, Alshaikh A, Banjar A. Effect of Social Media on Patient’s Perception of Dental Aesthetics in Saudi Arabia. International Journal of Dentistry. 2022;2022:4794497.

Bull R, Rumsey N. The social psychology of facial appearance: Springer Science & Business Media; 2012.

Kiyak HA. Does orthodontic treatment affect patients’ quality of life? Journal of dental education. 2008;72(8):886-94.

Langlois JH, Kalakanis L, Rubenstein AJ, Larson A, Hallam M, Smoot M. Maxims or myths of beauty? A meta-analytic and theoretical review. Psychological bulletin. 2000;126(3):390.

Batwa W, Hunt NP, Petrie A, Gill D. Effect of occlusal plane on smile attractiveness. The Angle Orthodontist. 2012;82(2):218-23.

Havens DC, McNamara JA, Jr., Sigler LM, Baccetti T. The role of the posed smile in overall facial esthetics. Angle Orthod. 2010;80(2):322-8.

Tjan AH, Miller GD, The JG. Some esthetic factors in a smile. J Prosthet Dent. 1984;51(1):24-8.

Birkeland K, Bøe OE, Wisth PJ. Relationship between occlusion and satisfaction with dental appearance in orthodontically treated and untreated groups. A longitudinal study. The European Journal of Orthodontics. 2000;22(5):509-18.

Moskowitz M, Nayyar A. Determinants of dental esthetics: a rational for smile analysis and treatment. Compendium of continuing education in dentistry (Jamesburg, NJ: 1995). 1995;16(12):1164, 6, passim; quiz 86-, 6, passim; quiz 86.

Albino J, Tedesco L, Conny D. Patient perceptions of dental-facial esthetics: shared concerns in orthodontics and prosthodontics. The Journal of prosthetic dentistry. 1984;52(1):9-13.

Proffit W, Fields Jr H, Sarver D. Contemporary Orthodontics St Louis: Mosby Elsevier; 2007. Proffit W Contemporary Orthodontics St Louis: Mosby Elsevier. 2007.

Gupta T, Sadana G, Rai HK. Effect of esthetic defects in anterior teeth on the emotional and social well-being of children: a survey. International journal of clinical pediatric dentistry. 2019;12(3):229.

Feldens CA, Senna RA, Vargas-Ferreira F, Braga VS, Feldens EG, Kramer PF. The effect of enamel fractures on oral health-related quality of life in adolescents. Dental Traumatology. 2020;36(3):247-52.

Barbier L, Pottel L, De Ceulaer J, Lamoral P, Duyck J, Jacobs R, et al. Evaluation of quality of life after mandibular reconstruction using a novel fixed implant-supported dental prosthesis concept: a pilot study. International Journal Of Prosthodontics. 2019;32(2):162-73.

Sarver DM. The importance of incisor positioning in the esthetic smile: the smile arc. Am J Orthod Dentofacial Orthop. 2001;120(2):98-111.

Kokich Jr VO, Asuman Kiyak H, Shapiro PA. Comparing the perception of dentists and lay people to altered dental esthetics. Journal of Esthetic and Restorative Dentistry. 1999;11(6):311-24.

Kokich VO, Kokich VG, Kiyak HA. Perceptions of dental professionals and laypersons to altered dental esthetics: asymmetric and symmetric situations. American Journal of Orthodontics and Dentofacial Orthopedics. 2006;130(2):141-51.

Khan M, Khan MA, Hussain U. Clinical crown length, width and the width/length ratio in the maxillary anterior region in a sample of mardan population. Pakistan Oral & Dental Journal. 2015;35(4).

Levin EI. Dental esthetics and the golden proportion. The Journal of prosthetic dentistry. 1978;40(3):244-52.

Rufenacht CR. Fundamentals of esthetics: Quintessence Publishing (IL); 1990.

Ker A, Chan R, Fields HW, Beck M, Rosenstiel S. Esthetics and smile characteristics from the layperson's perspective: a computer-based survey study. The Journal of the American Dental Association. 2008;139(10):1318-27.

Silva BP, Jimenez-Castellanos E, Martinez-de-Fuentes R, Greenberg JR, Chu S. Laypersons' perception of facial and dental asymmetries. International Journal of Periodontics & Restorative Dentistry. 2013;33(6).

Padwa BL, Kaiser MO, Kaban LB. Occlusal cant in the frontal plane as a reflection of facial asymmetry. Journal of oral and maxillofacial surgery. 1997;55(8):811-6.

Hulsey CM. An esthetic evaluation of lip-teeth relationships present in the smile. Am J Orthod. 1970;57(2):132-44.

Johnson DK, Smith RJ. Smile estheties after orthodontic treatment with and without extraction of four first premolars. American Journal of Orthodontics and Dentofacial Orthopedics. 1995;108(2):162-7.

Moore T, Southard KA, Casko JS, Qian F, Southard TE. Buccal corridors and smile esthetics. American Journal of Orthodontics and Dentofacial Orthopedics. 2005;127(2):208-13.

Parekh SM, Fields HW, Beck M, Rosenstiel S. Attractiveness of variations in the smile arc and buccal corridor space as judged by orthodontists and laymen. The Angle Orthodontist. 2006;76(4):557-63.

Roden-Johnson D, Gallerano R, English J. The effects of buccal corridor spaces and arch form on smile esthetics. American Journal of Orthodontics and Dentofacial Orthopedics. 2005;127(3):343-50.

Rajeev AN, Vinoth S, Nagalakshmi S, Rajkumar B, Dhayanithi D, Kumar P. Evaluation of buccal corridor sizes in esthetic smile perception among general dentists and laypersons. Journal of Indian Academy of Dental Specialist Researchers¦ Volume. 2018;5(1).

Abu Alhaija ES, Al-Shamsi NO, Al-Khateeb S. Perceptions of Jordanian laypersons and dental professionals to altered smile aesthetics. The European Journal of Orthodontics. 2011;33(4):450-6.

Yang S, Guo Y, Yang X, Zhang F, Wang J, Qiu J, et al. Effect of mesiodistal angulation of the maxillary central incisors on esthetic perceptions of the smile in the frontal view. American Journal of Orthodontics and Dentofacial Orthopedics. 2015;148(3):396-404.

Thomas JL, Hayes C, Zawaideh S. The effect of axial midline angulation on dental esthetics. The Angle Orthodontist. 2003;73(4):359-64.

Sriphadungporn C, Chamnannidiadha N. Perception of smile esthetics by laypeople of different ages. Progress in orthodontics. 2017;18(1):1-8.

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Published

2023-06-30

How to Cite

1.
Rostum ID, Omer Z. Perceptions of orthodontically treated smile esthetics: a comparative evaluation of orthodontists, general dentists, and laypersons in Erbil city. EDJ [Internet]. 2023 Jun. 30 [cited 2024 May 20];6(1):20-31. Available from: https://edj.hmu.edu.krd/index.php/journal/article/view/207

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Original Articles