Brachetta-Aporta Natalia, Gonzalez Paula N, Bernal Valeria
División Antropología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, CONICET, La Plata,1900, Argentina.
División Antropología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, CONICET, La Plata,1900, Argentina; ENyS. Estudios en Neurociencias y Sistemas Complejos, CONICET-HEC-UNAJ., Buenos Aires, Argentina.
Ann Anat. 2019 Mar;222:12-20. doi: 10.1016/j.aanat.2018.10.008. Epub 2018 Nov 5.
The aim of this work is to assess the association between the patterns of bone modeling and the changes in shape and size of the maxilla along ontogeny in modern humans. The sample analyzed includes an ontogenetic series of 30 individuals from an archeological site from Pampa Grande, northwest of Argentina. The areas of bone resorption and formation were described by histological analysis of bone surfaces and then quantified using spatial statistics. Morphological changes were analyzed by geometric morphometric methods using landmarks and semilandmarks digitized on 3D surfaces obtained from CT-scans. The regression of bone modeling maps on the centroid size shows no significant association between both variables neither in subadult nor adult individuals. On the contrary, the results of the partial least squares analysis shows a strong association between the shape changes in the maxilla with changes in the pattern of bone modeling in both groups of age, subadults and adults. Overall, this study contributes to the understanding of the mechanisms and processes that model maxillary morphology during growth.
这项工作的目的是评估现代人类个体发育过程中骨建模模式与上颌骨形状和大小变化之间的关联。所分析的样本包括来自阿根廷西北部潘帕格兰德一个考古遗址的30个个体的个体发育序列。通过对骨表面的组织学分析描述骨吸收和形成的区域，然后使用空间统计学进行量化。使用从CT扫描获得的3D表面上数字化的地标和半地标，通过几何形态测量方法分析形态变化。骨建模图与质心大小的回归分析表明，在亚成人和成人个体中，这两个变量之间均无显著关联。相反，偏最小二乘分析结果表明，在亚成人和成人这两个年龄组中，上颌骨形状变化与骨建模模式变化之间存在很强的关联。总体而言，本研究有助于理解生长过程中塑造上颌形态的机制和过程。
