Vertical photogrammetric evaluation of the soft tissue profiles of two different racial groups: A comparative study

Diouf, Joseph Samba; Ngom, Papa Ibrahima; Fadiga, Mohamed Siddick; Badiane, Alpha; Diop-Ba, Khady; Ndiaye, Mame Diarra; Diagne, Falou

doi:10.1016/j.ortho.2014.10.011

Cited by 8 publications

(10 citation statements)

References 10 publications

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“…3. The measurement of the middle and lower third soft tissue profile of the face on previous studies Moshkelgosha et al 4 Leung et al 8 Diouf et al 7 Sample…”

Section: Resultsmentioning

confidence: 99%

“…5 These analyses are studied from a profile or lateral perspective, either by radiography or photography. 4 Several studies examine facial soft tissue profiles with linear and angular measurements, such as the studies by Moskelgosha et al 4 (2015) on Persians, Diouf et al 7 (2011) on Senegalese and Moroccans, Leung et al 8 (2014) on southern Chinese. Previous studies have shown variations in facial soft tissue analysis results with linear and angular measurements associated with influencing factors such as gender and ethnicity.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of soft tissue facial profiles of Chinese students at W.R. Supratman 1 and 2 high schools in Medan using linear and angular measurements

Lubis

Olivia

2021

Dent. J.

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Background: Soft tissue analysis is essential in treatment planning to ensure proportional, balanced, and harmonious soft tissue at the end of treatment. Several factors influence the variations, such as age and gender. Soft tissue profile analysis is usually studied from a lateral view. Purpose: The study aimed to determine whether there were differences in the average values of linear and angular measurement of the soft tissue profiles of the middle and lower third of the face between Chinese males and females high school students using lateral photometry. Methods: The samples were 100 lateral photographs (50 male and 50 female) of Chinese high school students at W.R. Supratman 1 and 2 in Medan. All samples were collected based on the inclusion and exclusion criteria obtained from secondary data. The linear and angular measurements were measured using Software Corel Draw 2019 and analysed statistically using an independent t-test and the Mann-Whitney test. Results: The inferior facial third, length of the lower lip, and prominence of the upper lip were, on average, greater in males, whereas in the prominence of pogonion, nasolabial angles, and nasofrontal angles were greater, on average, for females. Conclusion: There were significant gender differences in Chinese high school students in the inferior facial third, length of the lower lip, prominence of the upper lip, nasolabial angle, and nasofrontal angle, whereas there is no significant difference between genders in the prominence of the pogonion.

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“…3. The measurement of the middle and lower third soft tissue profile of the face on previous studies Moshkelgosha et al 4 Leung et al 8 Diouf et al 7 Sample…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of soft tissue facial profiles of Chinese students at W.R. Supratman 1 and 2 high schools in Medan using linear and angular measurements

Lubis

Olivia

2021

Dent. J.

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“…23 A few photogrammetric studies of North African countries, such as Senegalese students versus Moroccans students where linear measurements were taken to quantify their differences. 24 Another Sudanese study used a hand laser scanner in 653 subjects and analyzed 14 landmarks on the facial soft tissue. 25 Soft tissue cephalometric studies on Nigerians, Ghanaians, and Sudanese teenagers were done to determine soft tissue pattern Abbreviation: AA, African American.…”

Section: Discussionmentioning

confidence: 99%

A Comparison of 3D Facial Features in a Population from Zimbabwe and United States

Bhaskar

Kau

2020

Eur J Dent

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Objectives The purpose of this study was to determine the differences in three-dimensional (3D) facial features in a population from Zimbabwe and the United States. In addition, this study seeks to establish an average facial template of each population allowing clinicians to treat patients according to their cultural esthetic perceptions. Materials and Methods Three hundred one subjects from Zimbabwe and the United States were carefully selected and recruited for the study. Each subject presented with a normal facial profile, no asymmetries, and normal body mass index. The 3D images were captured using the 3dMD cameras. All images were further separated into male and female groups of the respective populations and imported to a dedicated software for analysis. Statistical Analysis The 3D facial images were constructed using Rapidform 6 software to recreate a composite facial average for each group representing a male and female average 3D face of Zimbabwean (Zim) and United States origin. Results The linear measurements showed that the maximum average distance between the Zim-M and Zim-F was 1.24 mm and the minimum distance between the African American (AA)-M and AA-F was 0.24 mm. This was the absolute distance. When the signed linear measurements were taken into consideration, the maximum average distance between Zim-F and AA-M was 1.22 mm and the least average distance between the Zim-M and AA-M was 0.22 mm. The absolute color histograms showed greatest similarity between the Zim-M and AA-M at 58% and the Zim-F had a 25 and 27% similarity with the AA-F and Zim-M, respectively. Conclusion The Zim-F showed the most variable features with a broader face, prominent forehead, and retruded alar base compared with their male counterparts and the Zim-M showed a wider prominent malar/zygomatic region, and prominent lateral supraorbital regions. There was a high similarity of 58% between the Zim-M and the AA-M, with the Zim-M showing a more protrusive superciliary arches, and a lateral zygomatic region tapering to the root of the nose. AbstractKeywords ► surface acquisition systems ► 3D faces ► 3D imaging ► 3D analysis

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“…As a matter of fact and based on the analysis of different forms of face (according to the angular measurements), the wideness of the interlabial angle among the average face (122.67 ± 7.87°) and the narrow face (121.6 ± 6.15°) clearly means a retrognathia of their face ( Table 5 ). Diouf et al (2014) carried out a comparative study of the anatomy of the faces of Moroccans and Senegalese [ 23 ]. This value was lower than the one found among Ivorians, bearing in mind that the study made no analysis of face shapes.…”

Section: Discussionmentioning

confidence: 99%

Relationship between Angular Measurements and Facial Shape of Young Ivorians with Normal Dental Occlusion

Diomande

Beugré

Koueita

et al. 2018

The Scientific World Journal

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Objective The aim of this study was to perform an analysis of angular measurements (from both the full face and profile), according to shapes of the human face. Method It was a descriptive and cross-sectional study of 108 black Ivorian subjects. For each subject selected, two standardized photographs (full face and profile) were taken, followed by anthropometric measurements. The data collected were analyzed using the SPSS 20.0 statistics software for Windows. Results In the present work, the faces were considered according to three particular qualifiers: broad face, medium face, and narrow face. Thus, 45.37% of the faces in this study were large, 31.48% on average, and 23.15% narrow. The interlabial angles of average face and long face were wider than that of large face with p < 0.01. The angle of the facial width was higher for large face and average face, compared to narrow face (p < 0.001). Conclusion Median and bilateral angles lead to rational understanding of the various shapes of the human face.

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Vertical photogrammetric evaluation of the soft tissue profiles of two different racial groups: A comparative study

Cited by 8 publications

References 10 publications

Analysis of soft tissue facial profiles of Chinese students at W.R. Supratman 1 and 2 high schools in Medan using linear and angular measurements

Analysis of soft tissue facial profiles of Chinese students at W.R. Supratman 1 and 2 high schools in Medan using linear and angular measurements

A Comparison of 3D Facial Features in a Population from Zimbabwe and United States

Relationship between Angular Measurements and Facial Shape of Young Ivorians with Normal Dental Occlusion

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