Childhood variation in skeletal and dental development

The existing research comparing variation in developmental timing of skeletal and dental systems has focused on cross-sectional correlations of group means throughout late childhood. We used a longitudinal sample of 100 White American girls to compare developmental variation from 3-12 years to impro...

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Main Authors: Anna Louise Medendorp Rautman, Heather J.H. Edgar
Format: Article
Language:English
Published: Dental Anthropology Association 2020-01-01
Series:Dental Anthropology
Online Access:http://journal.dentalanthropology.org/index.php/jda/article/view/294/282
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author Anna Louise Medendorp Rautman
Heather J.H. Edgar
author_facet Anna Louise Medendorp Rautman
Heather J.H. Edgar
author_sort Anna Louise Medendorp Rautman
collection DOAJ
description The existing research comparing variation in developmental timing of skeletal and dental systems has focused on cross-sectional correlations of group means throughout late childhood. We used a longitudinal sample of 100 White American girls to compare developmental variation from 3-12 years to improve our understanding of developmental variation. The sample was divided into two sets (dental and skeletal) of three subgroups (delayed, average, or advanced) based on development at age three. Repeated measure ANOVA and Tukey’s HSD analyses examined the longitudinal maturation of: 1) skeletal development of skeletal subgroups, 2) dental development of skeletal subgroups, 3) dental development of dental subgroups, and 4) skeletal development of dental subgroups. The four models demonstrated significant differences between subgroup developmental trajectories. Pairwise comparisons of same-system development (analyses 1 and 3) found all comparisons to be significant; this was not the case for pairwise comparisons across systems (analyses 2 and 4). Only the advanced group was consistently different across all combinations. Results suggest that the pace of development differs among delayed, average, and advanced individuals, and between dental and skeletal systems. Therefore, to fully explore the relationship between the systems, the full range of variation in the timing of development is required.
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spelling doaj.art-b66d49a33bd644f091366457357455df2022-12-21T20:03:07ZengDental Anthropology AssociationDental Anthropology1096-94112020-01-01331316https://doi.org/10.26575/daj.v33i1.294Childhood variation in skeletal and dental developmentAnna Louise Medendorp Rautman0Heather J.H. Edgar1University of New MexicoUniversity of New MexicoThe existing research comparing variation in developmental timing of skeletal and dental systems has focused on cross-sectional correlations of group means throughout late childhood. We used a longitudinal sample of 100 White American girls to compare developmental variation from 3-12 years to improve our understanding of developmental variation. The sample was divided into two sets (dental and skeletal) of three subgroups (delayed, average, or advanced) based on development at age three. Repeated measure ANOVA and Tukey’s HSD analyses examined the longitudinal maturation of: 1) skeletal development of skeletal subgroups, 2) dental development of skeletal subgroups, 3) dental development of dental subgroups, and 4) skeletal development of dental subgroups. The four models demonstrated significant differences between subgroup developmental trajectories. Pairwise comparisons of same-system development (analyses 1 and 3) found all comparisons to be significant; this was not the case for pairwise comparisons across systems (analyses 2 and 4). Only the advanced group was consistently different across all combinations. Results suggest that the pace of development differs among delayed, average, and advanced individuals, and between dental and skeletal systems. Therefore, to fully explore the relationship between the systems, the full range of variation in the timing of development is required.http://journal.dentalanthropology.org/index.php/jda/article/view/294/282
spellingShingle Anna Louise Medendorp Rautman
Heather J.H. Edgar
Childhood variation in skeletal and dental development
Dental Anthropology
title Childhood variation in skeletal and dental development
title_full Childhood variation in skeletal and dental development
title_fullStr Childhood variation in skeletal and dental development
title_full_unstemmed Childhood variation in skeletal and dental development
title_short Childhood variation in skeletal and dental development
title_sort childhood variation in skeletal and dental development
url http://journal.dentalanthropology.org/index.php/jda/article/view/294/282
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