Differences in attractiveness comparing female profile modifications of Class II Division 1 malocclusion

Yüksel, Aylin Gözde; Iskender, Sebahat Yesim; Kuitert, Reinder; Papadopoulou, Alexandra K.; Dalci, Kerem; Darendeliler, M. Ali; Dalci, Oyku

doi:10.1016/j.ajodo.2017.01.025

Cited by 16 publications

(17 citation statements)

References 25 publications

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“…Some studies asked participants to rank photos in the order of attractiveness to nd which photo was the most or the least attractive. [14] And some studies combined ranking orders and VAS scores together and evaluated their consistency [13]. In our study, since the changes were made bidirectionally, it was not di cult to speculate that a large amount of labial or lingual movement would be both considered unacceptable, so ranking the photos was impractical in this study.…”

Section: Discussionmentioning

confidence: 93%

“…To determine the reliability of the method, two weeks later, 33 participants of each group were randomly asked to assess the same seven images again. The scores for each photo were examined by the intraclass correlation test (95% con dence intervals) [13]. The result of orthodontists was 0.91 and that of laypersons was 0.98, which indicated that the results of each group had good reliability.…”

Section: Reliabilitymentioning

confidence: 99%

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Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Jiang

Cao

Yang

et al. 2020

Preprint

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BackgroundsThe maxillary anterior teeth play a crucial role in smile aesthetics. As for maxillary lateral incisors, most studies concentrated on its size, incisor edge level, inclination, et al. However, the aesthetic effect of lateral incisor movement in spatial position has not been studied yet. Therefore, the purpose of this study was to explore the influence of labiolingual position of maxillary lateral incisors on the aesthetic perception of orthodontists and laypersons and different gender groups.MethodsA photograph of a male's smile was selected. iOrtho7.0 software (Time Angel, Wuxi, China) was used to edit the three dimensional (3D) dental models. By referring to the 3D models, the photograph was digitally processed to create seven images with different labiolingual positions of the maxillary lateral incisors in 0.5 mm increments (+ indicates labial movement and -indicates lingual movement). Eighty-six orthodontists and one hundred sixty-one laypersons were asked to evaluate images using a visual analog scale. Data were analyzed by Student t-test and One-way analysis of variance with post hoc test.ResultsThere was no significant difference between the perception of males and females (P > 0.05). Orthodontists assigned lower scores to all images than laypersons. +1.5 mm was considered as the least attractive smile by orthodontists while + 1.5 mm and − 1.5 mm were regarded as the least attractive ones by laypersons. 0 mm was rated the most attractive by all judges (P < 0.05). Between the 0 mm and − 0.5 mm, laypersons observed the difference but orthodontists did not.ConclusionsThe labiolingual position of maxillary lateral incisors does affect the perception of smile esthetics. Although orthodontists gave lower score to each image than laypersons.

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Section: Discussionmentioning

confidence: 93%

Section: Reliabilitymentioning

confidence: 99%

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Jiang

Cao

Yang

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Some studies asked participants to rank photos in the order of attractiveness to find which photo was the most or the least attractive [ 14 ]. Other studies combined ranking orders and VAS scores together and evaluated their consistency [ 13 ]. We did not ask the raters to rank the photos in order of preference, since it seemed likely that greater amounts of labial or lingual movement would be judged correspondingly less acceptable.…”

Section: Discussionmentioning

confidence: 99%

“…To determine the reliability of our results, a random subset of 33 participants were asked two weeks later to re-assess the same seven images. The earlier and later scores for photos showed an intraclass correlation coefficient of 0.91 for orthodontists and 0.98 for laypersons [ 13 ], indicating good reliability for both groups.…”

Section: Methodsmentioning

confidence: 99%

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

et al. 2021

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Background The maxillary anterior teeth play a crucial role in smile aesthetics. Previous studies regarding the importance of maxillary lateral incisors for smile aesthetics concentrated on their size, incisor edge level, and inclination, etc. However, the aesthetic effect of lateral incisor movement in the spatial position has not been studied yet. Therefore, the purpose of this study was to explore the influence of the labiolingual position of maxillary lateral incisors on the aesthetic perception of smiles by orthodontists and laypersons, as well as analyze differences in this perception between male and female raters. Methods A three-dimensional (3D) dental model was generated from the photograph of a man’s smile using iOrtho7.0 software (Time Angel, Wuxi, China). Based on this model, seven images were generated with different labiolingual positions of the maxillary lateral incisors in 0.5 mm increments (+ indicating labial translation, and—indicating lingual translation). The images were evaluated by 86 orthodontists and 161 laypersons using a visual analog scale, with lower scores indicating less attractiveness. Data were analyzed using Student’s t test and one-way analysis of variance with post hoc test. Results There was no significant difference in smile ratings by males and females. Orthodontists assigned lower scores to all images than laypersons. The smile at + 1.5 mm was considered the least attractive by orthodontists, while smiles at + 1.5 mm and − 1.5 mm were regarded as the least attractive by laypersons. The smile at 0 mm was evaluated as the most attractive by all raters. Laypersons gave different scores to smiles at 0 or − 0.5 mm, but orthodontists did not. Conclusions The labiolingual position of maxillary lateral incisors does affect the perception of smile aesthetics. Orthodontists may rate smile aesthetics more critically than laypersons. Therefore, communication and discussion between orthodontists and patients is needed to achieve better therapeutic and aesthetic outcomes.

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“…To determine the reliability of our results, a random subset of 33 participants were asked two weeks later to re-assess the same seven images. The earlier and later scores for photos showed an intraclass correlation coe cient of 0.91 for orthodontists and 0.98 for laypersons [13], indicating good reliability for both groups.…”

Section: Reliabilitymentioning

confidence: 91%

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Jiang

Cao

Yang

et al. 2021

Preprint

View full text Add to dashboard Cite

Background: The maxillary anterior teeth play a crucial role in smile aesthetics. Previous studies regarding the importance of maxillary lateral incisors for smile aesthetics concentrated on their size, incisor edge level, and inclination, etc. However, the aesthetic effect of lateral incisor movement in the spatial position has not been studied yet. Therefore, the purpose of this study was to explore the influence of the labiolingual position of maxillary lateral incisors on the aesthetic perception of smiles by orthodontists and laypersons, as well as analyze differences in this perception between male and female raters.Methods: A three-dimensional (3D) dental model was generated from the photograph of a man’s smile using iOrtho7.0 software (Time Angel, Wuxi, China). Based on this model, seven images were generated with different labiolingual positions of the maxillary lateral incisors in 0.5 mm increments (+ indicating labial translation, and - indicating lingual translation). The images were evaluated by 86 orthodontists and 161 laypersons using a visual analog scale, with lower scores indicating less attractiveness. Data were analyzed using Student’s t test and one-way analysis of variance with post hoc test.Results: There was no significant difference in smile ratings by males and females. Orthodontists assigned lower scores to all images than laypersons. The smile at +1.5 mm was considered the least attractive by orthodontists, while smiles at +1.5 mm and -1.5 mm were regarded as the least attractive by laypersons. The smile at 0 mm was evaluated as the most attractive by all raters. Laypersons gave different scores to smiles at 0 or -0.5 mm, but orthodontists did not.Conclusions: The labiolingual position of maxillary lateral incisors does affect the perception of smile aesthetics. Orthodontists may rate smile aesthetics more critically than laypersons. Therefore, communication and discussion between orthodontists and patients is needed to achieve better therapeutic and aesthetic outcomes.

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Differences in attractiveness comparing female profile modifications of Class II Division 1 malocclusion

Cited by 16 publications

References 25 publications

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

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