Differences Among Deviations, Genders, and Observers in the Perception of Eye and Nose Asymmetry

Kwak, Kyoung-Ho; Kim, Yong‐Il; Nam, Hyung-Jin; Kim, Seong-Sik; Park, Soo‐Byung; Son, Woo‐Sung

doi:10.1016/j.joms.2015.02.009

Cited by 8 publications

(3 citation statements)

References 30 publications

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“…However, our study has some limitations. Although we accepted 3 degrees as the limit for clinical significance, it needs to be taken into account that this issue is controversial 26‐28 . More comprehensive researches with similar measurement parameters are required for further validation.…”

Section: Discussionmentioning

confidence: 99%

“…Although we accepted 3 degrees as the limit for clinical significance, it needs to be taken into account that this issue is controversial. [26][27][28] More comprehensive researches with similar measurement parameters are required for further validation. Second, the grouping was made only according to the body inclination difference angle, which is a parameter related to the lower part of the facial asymmetry.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of an automated approach for facial midline detection and asymmetry assessment: A preliminary study

Yurdakurban

Duran

Görgülü

2021

Orthod Craniofacial Res

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Objective: To examine the level of agreement between the conventional method and a machine-learning approach to facial midline determination and asymmetry assessment. Settings and Sample Population:The study included a total of 90 samples (53 females; 37 males) with different levels of mandibular asymmetry. Materials and Methods:Two researchers placed predefined soft tissue landmarks individually on selected facial frontal photographs and created 10 reference lines. The midsagittal line was determined as perpendicular to the midpoint of the bipupillary line, and the same two reference lines and facial landmarks were automatically determined by the software using machine-learning algorithms, and researchers created the other 8 reference lines using the facial landmarks that were determined automatically by the software. In the following stage, 2 linear and 10 angular measurements were made by a single researcher on 270 photographs, and the consistency and differences between the measurements were evaluated with a one-sample t test, an intraclass correlation coefficient (ICC) and Bland-Altman Plots. Results:The level of agreement of measurements between the researchers and the software was low for eight parameters (ICC˂0.70). The one-sample t test revealed that differences between the software and researcher measurements of lip canting and pronasale deviation were not statistically significantly different (P > .05). Aside from the body inclination difference in Group 3 (samples with a mandibular body inclination difference >6°), there was no clinically significant difference (˂3°) between the measurements of the two methods.Conclusions: Machine-learning algorithms have the potential for clinical use in asymmetry assessment and midline determination and can help clinicians in a manual approach.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of an automated approach for facial midline detection and asymmetry assessment: A preliminary study

Yurdakurban

Duran

Görgülü

2021

Orthod Craniofacial Res

View full text Add to dashboard Cite

show abstract

“…This finding differs from that found in some previous studies, in which sex did not influence judgment. 22,23 However, the influence of the observer's gender on the perception of asymmetry and facial attractiveness has previously been reported, 24,25 pointing out that women are more sensitive relative to perceiving eye asymmetries, while men are more sensitive to awareness of nose asymmetries. Social judgment reflects how one individual perceives the other.…”

Section: Scale (B-lsojcleft-s) the Social Stigma Related To The Prese...mentioning

confidence: 99%

Development and validation of the Brazilian Version of Lay Persons’ Social Judgements about Cleft-lip Scale (B-LSojCleft-S)

Maia,

Grimaldi,

Jural

et al. 2023

Braz. oral res.

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The aim of this study was to develop and analyze the psychometric properties of the Brazilian Version of Lay Person's Social Judgement about Cleft-lip Scale (B-LSojCleft-S). A standardized photograph of a 16-year-old girl was manipulated by using photo editing software, to simulate different cleft-lip situations. The cleftfree image was used as a control. The researchers structured an initial questionnaire that was evaluated by experts and a sample of the target population to evaluate the construct. After analysis by the researchers, a final version of the B-LSojCleft-S containing 14 items was generated.Each answer was awarded score from 1 to 3 points, yielding a total score of 14 to 42 points. Higher scores represented better social judgements. The B-LSojCleft-S was applied online to 103 test participants and 73 retest participants with an interval of 20 days between application. Aspects of acceptability, discriminant property, internal consistency, reliability and construct validity were evaluated. Construct validity was assessed using the Friedman test (p < 0.05). Reliability was determined using an intraclass correlation coefficient > 0.70, and internal consistency using Cronbach's alpha > 0.81. The B-LSojCleft-S showed high acceptability, strong discriminant property, excellent internal consistency and reliability, but had a floor and ceiling effect. The instrument reached valid and reliable scores and had acceptable psychometric properties to evaluate the social judgments of lay persons about different cleft lip situations in a Brazilian population.

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Wahrnehmung von fazialen und dentalen Asymmetrien und ihre Auswirkungen auf die mundgesundheitsbezogene Lebensqualität von Kindern und Jugendlichen

Flanze,

Riemekasten,

Hirsch

et al. 2023

J Orofac Orthop

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Background The aim of this study was to investigate the perception of facial and dental asymmetries in children and adolescents and how these asymmetries affect their psychosocial and emotional well-being. Methods The study included 66 children and adolescents (7–15 years) with a deviation between the maxillary and mandibular dental midlines of > 0.5 mm. The soft tissues of the face were scanned using stereophotogrammetry. Psychosocial and emotional impairments were assessed using the German version of the Child Perceptions Questionnaire (CPQ-G8-10 and 11–14). Results The mean midline deviation of the study group was 2.3 mm with no significant gender differences. Girls perceived facial asymmetry significantly more often than boys (p < 0.01). However, stereophotogrammetry showed no significant differences in facial morphology between subjects who perceived their face as asymmetrical and those who perceived it as symmetrical. Interestingly, we observed a significant correlation between the deviation of the dental midline and the lateral displacement of gonion (p < 0.05) and cheilion (p < 0.01). Psychosocial and emotional impairment was significantly higher in girls than in boys (p < 0.05). However, there was no significant correlation with the measured facial asymmetries. In contrast, the CPQ subscale score was 2.68 points higher in individuals with a dental midline shift ≥ 3 mm (p < 0.01), independent of age and gender. Conclusion Although girls perceived facial asymmetries more strongly than boys do, this perception could not be objectified by extraoral measurements. A midline shift of 3 mm or more had a negative impact on the oral health-related quality of life of affected children and adolescents.

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Differences Among Deviations, Genders, and Observers in the Perception of Eye and Nose Asymmetry

Cited by 8 publications

References 30 publications

Evaluation of an automated approach for facial midline detection and asymmetry assessment: A preliminary study

Evaluation of an automated approach for facial midline detection and asymmetry assessment: A preliminary study

Development and validation of the Brazilian Version of Lay Persons’ Social Judgements about Cleft-lip Scale (B-LSojCleft-S)

Wahrnehmung von fazialen und dentalen Asymmetrien und ihre Auswirkungen auf die mundgesundheitsbezogene Lebensqualität von Kindern und Jugendlichen

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