Growth of Cranial Base and Vault Dimensions in Children
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概要
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Lengths and angles within the cranial base and vault were measured in cephalometric radiographs of 220 boys and 177 girls ranging in age from 0 to 18 years. These children were participants in The Fels Longitudinal Growth Study. The present study is based on mixed longitudinal data derived from 1861 radiographs for boys and 1401 radiographs for girls. In this study, the anatomical parts of the cranial base are designated as follows: cranial base (nasion-basion), anterior cranial base (nasion-sella), fronto-ethmoidal segment (nasion-sphenoethmoidale), presphenoid segment (sphenoethmoidalesella), posterior cranial base (sella-basion), basisphenoid segment (sella-sphenoccipital), and basioccipital segment (sphenoccipital-basion). Endocranial points are used in the calvarial area for the vertex and anterior and posterior limits. Moreover, three angles are measured (nasion-sella-basion; sella-nasion-point A; nasion..sella-posterior nasal spine). Changes with age in the mean values for each dimension are described. The statistical significance of the observed age changes was tested by linear regression analysis for each variable after dividing the samples into three age groups (0-3, 4-6, 7-18 years). Contrary to reported findings, both basisphenoid and basioccipital segments increase steadily with age in each sex. The angle sella-nasion-point A decreases until the age of 10 years in boys and 9 years in girls; at older ages there is a tendency to increase with age in each sex.
- 日本人類学会の論文
日本人類学会 | 論文
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