Facial growth and development trajectories based on three-dimensional images: geometric morphometrics with a deformation perspective DOI Creative Commons
Yu Jie Zhong, Dan Cui, Yi Feng Wen

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(1)

Published: Jan. 1, 2024

Developmental changes of facial shape are commonly investigated through geometric morphometrics. A limitation with this approach is the inability to investigate patterns morphological at local scale. This could be addressed quantifying deformation required deform one another. study aimed in mean, rate and variance scale using morphometrics perspective. total 2112 Europeans 3 40 years old from three-dimensional Facial Norms project were included. Shape trajectories partial least-squares regressions revealed that developmentally protrusive nasal bridge was due expansion surrounding tissues as opposed per se. Local supraorbital region, particular medial part males, resulted sloping forehead deep-situated eyes development. variation increased nonlinearly age (p < 0.05), features having larger change becoming more diversified. In summary, our perspective facilitates unravelling morphogenetic processes underlying changes. Our extended analytical scope inspires novel measures worthy consideration while establishing growth charts. The framework broadly applicable for analysis general.

Language: Английский

Three-Dimensional Geometric Morphometric Characterization of Facial Sexual Dimorphism in Juveniles DOI Creative Commons
Riccardo Solazzo, Annalisa Cappella, Daniele Gibelli

et al.

Diagnostics, Journal Year: 2025, Volume and Issue: 15(3), P. 395 - 395

Published: Feb. 6, 2025

Background: The characterization of facial sexual dimorphic patterns in healthy populations serves as valuable normative data to tailor functionally effective surgical treatments and predict their aesthetic outcomes identify dysmorphic traits related hormonal disorders genetic syndromes. Although the analysis differences juveniles different ages has already been investigated, few studies have approached this topic with three-dimensional (3D) geometric morphometric (GMM) analysis, whose interpretation may add important clinical insight current understanding. This study aims investigate location extent variations through a spatially dense GMM analysis. Methods: We investigated 3D stereophotogrammetric scans 304 Italians aged 3 18 years old (149 males, 155 females) categorized into four age groups: early childhood (3–6 years), late (7–12 puberty (13–15 adolescence (16–18 years). Geometric analyses shape (allometry, general Procrustes Principal Component Analysis, distance, Partial Least Square Regression) were conducted detail sexually each group. Results: findings confirmed that males larger faces than females same age, significant between two sexes exist all groups. Juveniles start express dimorphism from years, even though biological sex becomes predictor soft tissue morphology 7th year life, displaying more protrusive medial features showing outwardly placed cheeks eyes. Conclusions: provided detailed change trajectories along classes, can be for several disciplines dealing craniofacial region. Our results serve comparative diagnosis abnormalities alterations, reference planning personalized orthodontic evaluation, well forensic applications such prediction face missing juveniles.

Language: Английский

Citations

1
Facial growth and development trajectories based on three-dimensional images: geometric morphometrics with a deformation perspective DOI Creative Commons
Yu Jie Zhong, Dan Cui, Yi Feng Wen

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(1)

Published: Jan. 1, 2024

Developmental changes of facial shape are commonly investigated through geometric morphometrics. A limitation with this approach is the inability to investigate patterns morphological at local scale. This could be addressed quantifying deformation required deform one another. study aimed in mean, rate and variance scale using morphometrics perspective. total 2112 Europeans 3 40 years old from three-dimensional Facial Norms project were included. Shape trajectories partial least-squares regressions revealed that developmentally protrusive nasal bridge was due expansion surrounding tissues as opposed per se. Local supraorbital region, particular medial part males, resulted sloping forehead deep-situated eyes development. variation increased nonlinearly age (p < 0.05), features having larger change becoming more diversified. In summary, our perspective facilitates unravelling morphogenetic processes underlying changes. Our extended analytical scope inspires novel measures worthy consideration while establishing growth charts. The framework broadly applicable for analysis general.

Language: Английский

Citations

2