PERCEPTION OF THE SMILE ON PEOPLE WITH AND WITHOUT KNOWLEDGE IN ORTHODONTICS
DOI:
https://doi.org/10.15332/us.v13i1.1396Keywords:
smiling, orthodontics, perceptionAbstract
Objective: to assess the perception of the smile from the perspective of orthodontists and people without knowledge in orthodontics.
Methods: a cross-sectional study was carried out. Two hundred and seven questionnaires about knowledge and perception of the smile were completed by 43 orthodontists and students of the Especialización en Ortodoncia at the Universidad Santo Tomás (group 1) and 164 people with no knowledge in orthodontics (group 2). The dependent variables were the perception of alterations in the midline and the buccal corridor; the explanatory variables were age, sex and socioeconomic status. The information was described by means and standard deviations, frequencies and percentages depending on the nature of the variables. Chi-square test was applied and a p value <0.05 was considered statistically significant.
Results: the midline deviation of 1 mm and centered were chosen for men and women as the most pleased the two study groups. In determining the least pleasant smile, the groups agreed that the least pleasant smile was when it presented the largest deviation (4 mm). Association between knowledge and perception of the deviation from the mean line in 2 mm (p=0.044) and 4 mm (p=0.000) was found. Smiles with a large buccal corridor, medium and large were perceived as less pleasant for both sexes, all women assessed as less pleasant broad buccal corridor.
Conclusion: a statistically significant difference was not present in the perception of the characteristics of the smile between people with and without knowledge of orthodontics.
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References
Moore T, Southard KA, Casko JS, Qian F, Southard TE. Buccal corridors and smile esthetics. Am J Orthod Dentofacial Orthop. 2005; 127: 208 - 213.
Van der Geld P, Oosterveld P, Van Heck G, Kuijpers-Jagtman AM. Smile attractiveness. Self-perception and influence on personality. Angle Orthod. 2007; 5: 759 - 765.
Ioi H, Nakata S, Counts AL. Effects of buccal corridors on smile esthetics in Japanese. Angle Orthod. 2009; 79: 628 - 633.
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. Angle Orthod. 2006; 76: 557 - 563.
Kokich VO, Kokich VG, Kiyak HA. Perceptions of dental professionals and laypersons to altered dental esthetics: Asymmetric and symmetric situations. Am J Orthod Dentofacial Orthop. 2006; 130: 141 - 151.
Kokich VO, Kiyak HA, Shapiro PA. Comparing the perception of dentists and lay people to altered dental esthetics. J Esthet Dent. 1999; 11: 311 - 324.
Brislin RW, Lewis SA. Dating and physical attractiveness: replication. Psychol Rep. 1968; 22: 976.
Boley JC, Pontier JP. Facial change in extraction and nonextraction in patients. Angle Orthod. 1998; 68: 539 - 546.
Sarver P, Ackerman M. Dynamic smile visualization and quantification: Part 1. Evolution of the concept and dynamic records for smile capture. Am J Orthod Dentofacial Orthop. 2003; 124: 4 - 12.
Havens DC, McNamara JA Jr, Sigler LM, Baccetti T. The role of the posed smile in overall facial esthetics. Angle Orthod. 2010; 80: 322-328.
McNamara L, McNamara JA Jr, Ackerman MB, Baccetti T. Hard - and soft tissue contributions to the esthetics of the posed smile in growing patients seeking orthodontic treatment. Am J Orthod Dentofacial Orthop. 2008; 133: 491 - 499.
Zhang YF, Xiao L, Li J, Peng YR, Zhao Z. Young people’s esthetic perception of dental midline deviation. Angle Orthod. 2010; 80: 515 - 520.
Tjan AH, Miller GD, The JG. Some esthetics factors in a smile. J Prosthet Dent. 1984; 51: 24 - 28.
Rodríguez C de D, Magnani R, Machado MS, Oliveira OB. The perception of smile attractiveness, variations from esthetic norms, photographic framing and order of presentation. Angle Orthod. 2009; 79: 634-639.
Singer BA. Principles of esthetics. Curr Opin Cosmet Dent. 1994: 6 - 12.
Rufenacht C. Fundamentals of Esthetics. Quintessense Books. Pag 11 - 132.
Hulsey CM. An esthetic evaluation of lip-teeth relationships present in the smile. Am J Orthod Dentofacial Orthop. 1970; 57: 132 - 144.
Peck S, Peck L, Katoja M. Some vertical lineaments of lip position. Am J Orthod Dentofacial Orthop. 1992; 101: 519 - 524.
Martin AJ, Buschang PH, Boley JC, Taylor RW, McKinney TW. The impact of buccal corridors on smile attractiveness. Eur J Orthod. 2007; 29: 530 - 537.
Johnston CD, Burden DJ, Stevenson MR. The influence of dental to facial midline discrepancies on dental attractiveness rating. Eur J Orthod. 1999; 21: 517 - 522.
Parekh S, Fields HW, Beck FM, Rosenstiel SF. The acceptability of variations in smile arc and buccal corridor space. Orthod Craniofacial Res. 2007; 10: 15 - 21.
Ritter DE, Gandini LG, Pinto Ados S, Locks A. Esthetic influence of negative space in the buccal corridor during smiling. Angle Orthod. 2006; 76: 198 - 203.
Maulik C, Nanda R. Dynamic smile analysis in young adults. Christopher Maulik and Ravindra Nanda. Am J Orthod Dentofacial Orthop. 2007; 132: 307 - 315.
