Photographic and videographic assessment of the smile: Objective and subjective evaluations of posed and spontaneous smiles

Walder, Joan F.; Freeman, Katherine; Lipp, Mitchell J.; Nicolay, Olivier; Cisneros, George J.

doi:10.1016/j.ajodo.2013.07.012

Cited by 34 publications

(35 citation statements)

References 17 publications

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“…11 Gross et al 18 reported that 2D methods can reflect only 43% of the facial expressions, and, therefore, it would be more appropriate to use 3D methods. With 3D stereophotogrammetry, the image can be acquired quickly (in less than 1.5 ms), and for this reason, movement-related distortions can be prevented.…”

Section: Discussionmentioning

confidence: 99%

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Three-dimensional evaluation of social smile symmetry

Duran

Di̇ndaroğlu

Görgülü

2016

The Angle Orthodontist

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Objective: To evaluate the social smile symmetry using three-dimensional (3D) stereophotogrammetric images. Materials and Methods: The study was conducted with 3D facial images of 30 individuals (age range 13-25 years). The rest position was considered as the reference image and the social smile image was aligned on this image using the best-fit alignment method. The spatial differences between the same points established on both images using 3D analyses were determined for right and left points in X, Y, and Z planes. Results: The highest difference related to spatial distance in right and left points was À0.56 mm (95% confidence interval [CI], À1.19, 0.06 mm) between right and left commissure (Com) points. The difference was not significant, and the Bland-Altman upper and lower limits were À3.85 mm and 2.71 mm, respectively. The highest difference for the transversal plane was found in Com points, similarly to the spatial distance (mean: 0.50 mm, 95% CI, À2.62, 1.02 mm). The differences between the changes in the left and right points in the Y and Z plane were not significant (P . .05). Conclusions: The social smile was observed to show asymmetry in varying amounts in the different directions. Asymmetry increases in some cases, specifically for the corners of the mouth.

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Section: Discussionmentioning

confidence: 99%

“…10 Social smiles of the participants were acquired by the same investigator, who gave the command ''Give me a nice big smile like the people in the photographs'' to the participants. 11 …”

Section: Acquisition Of 3d Stereophotogrammetric Imagesmentioning

confidence: 99%

Three-dimensional evaluation of social smile symmetry

Duran

Di̇ndaroğlu

Görgülü

2016

The Angle Orthodontist

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“…Social smile was found to be reproducible. Walder et al (32) stated that a social smile can be reliably reproduced, whether captured by videography or still photography. Van der Geld et al (33,34) mentioned that a spontaneous smile could be measured by videography.…”

Section: Discussionmentioning

confidence: 99%

Perception of Smile Esthetics by Orthodontists and Laypersons: Full Face and A Localized View of The Social and Spontaneous Smiles

Di̇ndaroğlu¹,

Erdinç²,

Doğan³

2017

Turk J Orthod

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Objective: The aim of the study was to evaluate the parameters that might affect the esthetic perception of localized and full-face views of social and spontaneous smiles.Methods: Video records of 40 individuals were used. Further, 200 images of each individual were captured for social and spontaneous smiles with and without calibration glasses. Full-face images of social smile (SSF) and spontaneous smile (smile of joy) (JSF) were obtained. Furthermore, the mouth-area images of the same social (SSM) and spontaneous (JSM) smiles from each subject were acquired. Here 160 images were evaluated by orthodontists and laypersons using the Q-sort method. The data were analyzed with logistic regression and independent samples t-test. Results:From the orthodontic perspective, upper lip thickness (p=0.004), lip curtain over incisors (p=0.016), maxillary incisor display (p=0.01), and buccal corridor ratio (p=0.006) were significant to determine attractive and unattractive images when viewing localized social smiles. Laypersons identified no particular parameter to explain the variation in preferences for all the image groups (p>0.05). Conclusion:Upper lip thickness and maxillary incisor display during smiling were found to be effective for distinguishing images as attractive and unattractive by orthodontists. No objective evaluations for the attractiveness were made by laypersons.

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“…Kahkaha atmak ise doğumdan 3 ay sonra ortaya çıkmaktadır (29). Temel de sosyal gülümseme ve duygusal gülümseme olarak 2 çeşit gülümseme mevcuttur (Şekil 3) (30). Sosyal gülümsemenin en belirgin özelliği tekrarlanabilir olması-dır; bu yönüyle estetik diş hekimliği ve ortodonti açısın-dan önem arz etmektedir (30).…”

Section: Gülümsemeunclassified

“…Temel de sosyal gülümseme ve duygusal gülümseme olarak 2 çeşit gülümseme mevcuttur (Şekil 3) (30). Sosyal gülümsemenin en belirgin özelliği tekrarlanabilir olması-dır; bu yönüyle estetik diş hekimliği ve ortodonti açısın-dan önem arz etmektedir (30). Bu sebeptendir ki sosyal gülümseme ortodontide tanı ve tedavi planlamasının odak noktasında bulunmalıdır (31).…”

Section: Gülümsemeunclassified

Ortodonti ve Gülümseme Estetiği

Börekçi¹,

Özkalaycı²

2017

J Int Dent Sci

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ÖZModern ortodontik yaklaşımda yumuşak doku paradigmasının gelişimiyle birlikte ortodontik tanı ve tedavi planlamasında tüm yüz estetiğinin incelenmesi önem kazanmıştır. Bu amaçla yumuşak doku estetiğinin değerlendirilme parametreleri konusundaki çalışmalar son dönemde ağırlık kazanmıştır. Yüze ait alın, burun, dudak ve çene ucu gibi yapıların değerlendirildiği çalışmalarda gülümseme estetiği ayrı bir başlık olarak ele alınmıştır. Sunulan çalışmada, gü-lümseme estetiği konusu ile ilgili çalışmalar ele alınıp incelenmiş ve konu derlenmiştir.Anahtar sözcükler: Estetik, Gülümseme, Ortodonti, Yumuşak doku. ABSTRACTIn the modern orthodontic approach, the investigation of face aesthetic has become more important in the orthodontic diagnosis and treatment planning with the development of soft tissue paradigm. For this purpose, studies on parameters of soft tissue esthetic evaluation have gained importance in recent years. Smile aesthetics is discussed as a separate topic in studies evaluate facial tissues like nose, lips and chin. In the present study, Studies include smile aesthetics were collected and ant the topic was revised.

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Photographic and videographic assessment of the smile: Objective and subjective evaluations of posed and spontaneous smiles

Cited by 34 publications

References 17 publications

Three-dimensional evaluation of social smile symmetry

Three-dimensional evaluation of social smile symmetry

Perception of Smile Esthetics by Orthodontists and Laypersons: Full Face and A Localized View of The Social and Spontaneous Smiles

Ortodonti ve Gülümseme Estetiği

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