Stereophotogrammetric Analysis of Nasolabial Morphology among Asian Malays: Influence of Age and Sex

Al-Khatib, Ali R.; Rajion, Zainul Ahmad; Masudi, Sam’an Malik; Hassan, Rohayanti; Anderson, Peter J.; Townsend, Grant

doi:10.1597/11-151

Cited by 13 publications

(23 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of this study demonstrated that the Brazilian males and females had the greatest range of the nose measurements than did the Peruvians ( Figure 1): the Brazilian females showed the narrowest and shortest noses, while the Brazilian males had the greatest measurements of nose tip protrusion than did the other groups. Other studies comparing genders already found that females, in general, exhibited thinner and shorter noses than males [12,18,19].…”

Section: Discussionmentioning

confidence: 85%

“…The 3D stereophotogrammetry is the technique most used in current studies because it enables measuring variables with image depth, e.g. : volume, and linear/angular measurements [6,9,12,[17][18][19]. Table 2 displays the studies used in this discussion and the measurements found by the authors and the comparison with those of this present study.…”

Section: Discussionmentioning

confidence: 92%

“…Small alterations in face structures greatly impact on the face harmony. Many studies analyzed the face structures alone, based in different populations [9,11,[16][17][18][19]. The 3D stereophotogrammetry is the technique most used in current studies because it enables measuring variables with image depth, e.g.…”

Section: Discussionmentioning

confidence: 99%

“…The rationale behind this difference may be the facial features of the Malaysians, but Othman et al and Al-Khatib et al found greater nose height for men [18,19].…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Face morphology of brazilian and peruvian populations: analysis of proportion and linear measurement indexes

Santos

Pimentel

Matos

et al. 2017

BDS

View full text Add to dashboard Cite

Objective: To compare the proportion and linear measurement indexes between Brazilian and Peruvian population through 3D stereophotogrammetry and to stablish the face profile of these two Latin American populations. Material and Methods: 40 volunteers (Brazilian n = 21 -10 males and 11 females; Peruvian n = 19 -8 males and 11 females) aged between 18 and 40 years (mean of 28.7 ± 9.1) had landmarks marked on the face. Then, 3D images were obtained (VECTRA M3) and the indexes of proportion and linear measurement (face, nose, and lips) were calculated. The data were statistically analyzed by One-Way ANOVA (p < 0.05). Results: The proportion indexes did not reveal marked differences either between the studied populations or genders (p > 0.05). The following linear measurements showed intergroup statistically significant differences: face width and height, nose width and height, upper facial height, mouth width, protrusion of the nose tip (p < 0.05). The Brazilian females showed the smallest significant differences. Conclusions: Despite the different ethnic compositions, the Brazilian and Peruvian populations did not differ regarding the proportions of the face, nose, and lips. The differences observed in Brazilian females may be related to gender and/ or to the Caucasian heritage of the Brazilian sample. ReSumoObjetivo: Comparar índices de proporção e medidas lineares da face entre amostras de populações brasileiras e peruanas por meio da estereofotogrametria 3D, a fim de estabelecer o perfil facial destas duas populações latino-americanas. Material e Métodos: 40 voluntários (21 brasileiros -10 homens e 11 mulheres; 19 peruanos -8 homens e 11 mulheres) com idade entre 18 e 40 anos (média de 28,7 ± 9,1) tiveram pontos de referência marcados na face, foram então obtidas imagens 3D (VECTRA M3) e calculados índices de proporção e medidas lineares da face, nariz e lábios. Os dados foram analisados estatisticamente por meio de ANOVA One Way (p < 0,05). Resultados: Os índices de proporção não revelaram grandes diferenças entre as populações analisadas ou entre gêneros (p > 0,05). As medidas lineares que apresentaram diferença significativa na análise intergrupos foram: largura e altura da face e do nariz, altura da face superior, largura da boca e protrusão da ponta do nariz (p < 0,05), sendo que as brasileiras apresentaram as diferenças mais significativas em relação aos demais grupos, com medidas faciais menores. Conclusões: As populações brasileiras e peruanas, apesar das diferentes composições étnicas, não diferem quanto às proporções de face, nariz e lábios. As diferenças observadas no grupo de brasileiras podem estar relacionadas ao gênero e/ou à maior descendência caucasiana da amostra quando comparada à população peruana.

show abstract

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

“…The rationale behind this difference may be the facial features of the Malaysians, but Othman et al and Al-Khatib et al found greater nose height for men [18,19].…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Face morphology of brazilian and peruvian populations: analysis of proportion and linear measurement indexes

Santos

Pimentel

Matos

et al. 2017

BDS

View full text Add to dashboard Cite

show abstract

“…In Asia, Mori et al [28] scanned in 3D the nasiolabial characteristics of Japanese boys and girls aged 5 to 6 years, while Al-Khatib et al [29] studied the 3D characteristics of the nose of Malaysian adolescents aged 13 to 17 years. In Africa, Sforza et al [30,31] published reference values for more than 650 Northern Sudanese people from 4 years of age into young adulthood.…”

mentioning

confidence: 99%

Soft-tissue 3D Facial Imaging in Children and Adolescents: Towards the Definition of New Reference Standards

Sforza

Dolci

Tartaglia

et al. 2018

Pesqui. bras. odontopediatria clín. integr.

View full text Add to dashboard Cite

In the last decades, head and face imaging has shifted from two-dimensional (2D) representations (conventional radiography, photography) to three-dimensional (3D) techniques that can better depict the complex morphology of this part of the body, since they can provide a large number of additional anthropometric information [1][2][3]. 3D imaging systems can be divided into volumetric (computed tomography, cone beam computed tomography, magnetic resonance imaging) and optical surface instruments (laser scanning, moiré techniques, stereophotogrammetry, patterned light techniques) [4]. These last are safe and not invasive, and provide a 3D representation of the external (cutaneous) facial surface.Among all instruments, stereophotogrammetry is becoming the most diffused and used for both adults and children. Stereophotogrammetry is fast (typical scan time 2 ms), and it provides 3D photographs coupling a 3D mesh of the analyzed surface with a color facial image (texture). The technique takes photographs of the face from at least two different positions with two or more cameras (or set of cameras) at the same time. Using a previous calibration of the instrument, these coordinated photographs are combined to form a computerized stereoscopic reconstruction of the face [3,4]. Stereophotogrammetric systems have proven to be repeatable and able to provide accurate measurements [4,5].Alongside with stereophotogrammetry, some laboratories and research groups are using laser scanners. The device illuminates the object with a low-intensity laser, and digital cameras capture the images. During data acquisition, either the laser light or the face rotate to sample the entire surface; triangulation geometry provides the depth information [6]. A multicentric study showed that laser scanning and stereophotogrammetric acquisitions can provide superimposable data, that can be efficiently shared among laboratories [7]. 3D optical surface assessments can be of great value in clinical applications, at all ages of life, but especially for children where the concerns about radioprotection are maximized [3].

show abstract

A comprehensive evaluation of the phenotype-first and data-driven approaches in analyzing facial morphological traits

Qiao,

Tan,

Yan

et al. 2024

iScience

View full text Add to dashboard Cite

Stereophotogrammetric Analysis of Nasolabial Morphology among Asian Malays: Influence of Age and Sex

Abstract: This study has provided a new three-dimensional database for nose and lip morphology in Malays and demonstrated patterns of variation that can be used by surgeons to make comparisons within and between different human populations and also to develop treatment plans for their patients.

Cited by 13 publications

References 39 publications

Face morphology of brazilian and peruvian populations: analysis of proportion and linear measurement indexes

Face morphology of brazilian and peruvian populations: analysis of proportion and linear measurement indexes

Soft-tissue 3D Facial Imaging in Children and Adolescents: Towards the Definition of New Reference Standards

A comprehensive evaluation of the phenotype-first and data-driven approaches in analyzing facial morphological traits

Contact Info

Product

Resources

About