A geometric morphometric approach to the study of variation of shovel-shaped incisors

doi:10.1002/ajpa.23709

	A geometric morphometric approach to the study of variation of shovel-shaped incisors
	Carayon, Delphine 1,2; Adhikari, Kaustubh 3,4; Monsarrat, Paul 5,6; Dumoncel, Jean 1; Braga, Jose 1,7,8; Duployer, Benjamin 9; Delgado, Miguel 10,11; Fuentes-Guajardo, Macarena 3,4,12; de Beer, Frikkie 13; Hoffman, Jakobus W.13
刊名	AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
	2019
卷号	168 期号:1 页码:229-241
关键词	ASUDAS Procrustes and non-Procrustes superimpositions shovel-shape incisors virtual anthropology
ISSN号	0002-9483
DOI	10.1002/ajpa.23709
通讯作者	Carayon, Delphine(delphinedom.carayon@orange.fr)
英文摘要	Objectives The scoring and analysis of dental nonmetric traits are predominantly accomplished by using the Arizona State University Dental Anthropology System (ASUDAS), a standard protocol based on strict definitions and three-dimensional dental plaques. However, visual scoring, even when controlled by strict definitions of features, visual reference, and the experience of the observer, includes an unavoidable part of subjectivity. In this methodological contribution, we propose a new quantitative geometric morphometric approach to quickly and efficiently assess the variation of shoveling in modern human maxillary central incisors (UI1). Materials and methods We analyzed 87 modern human UI1s by means of virtual imaging and the ASU-UI1 dental plaque grades using geometric morphometrics by placing semilandmarks on the labial crown aspect. The modern human sample was composed of individuals from Europe, Africa, and Asia and included representatives of all seven grades defined by the ASUDAS method. Results Our results highlighted some limitations in the use of the current UI1 ASUDAS plaque, indicating that it did not necessarily represent an objective gradient of expression of a nonmetric tooth feature. Rating of shoveling tended to be more prone to intra- and interobserver bias for the highest grades. In addition, our analyses suggest that the observers were strongly influenced by the depth of the lingual crown aspect when assessing the shoveling. Discussion In this context, our results provide a reliable and reproducible framework reinforced by statistical results supporting the fact that open scale numerical measurements can complement the ASUDAS method.
资助项目	Toulouse Dental Faculty (PLTRO) ; Midi-Pyrenees Region ; Universite Toulouse III-Paul Sabatier ; Universite de Toulouse ; French CNRS ; Arizona State University ; CHU de Toulouse
WOS关键词	NONMETRIC DENTAL TRAITS ; COMPUTED-TOMOGRAPHY ; ORIGINS ; TEETH ; MORPHOLOGY ; PATTERNS ; MODEL ; EDAR ; NEWS ; BONE
WOS研究方向	Anthropology ; Evolutionary Biology
语种	英语
出版者	WILEY
WOS记录号	WOS:000452242400018
资助机构	Toulouse Dental Faculty (PLTRO) ; Midi-Pyrenees Region ; Universite Toulouse III-Paul Sabatier ; Universite de Toulouse ; French CNRS ; Arizona State University ; CHU de Toulouse
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/9133]
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Carayon, Delphine
作者单位	1.Univ Toulouse III Paul Sabatier, CNRS, UMR 5288, Toulouse, France 2.Univ Montpellier I, Fac Odontol, Montpellier, France 3.UCL, Dept Genet Evolut & Environm, London, England 4.UCL, UCL Genet Inst, London, England 5.Univ Toulouse III Paul Sabatier, Fac Odontol, Toulouse, France 6.Univ Toulouse III Paul Sabatier, CNRS, INSERM, EFS,INP ENVT,ERL 5311,STROMALab, Toulouse, France 7.Univ Witwatersrand, Evolutionary Studies Inst, Johannesburg, South Africa 8.Univ Witwatersrand, Sch Geosci, Johannesburg, South Africa 9.Univ Toulouse III Paul Sabatier, CNRS, Ctr Interuniv Rech & Ingn Mat, UMR 5085, Toulouse, France 10.Consejo Nacl Invest Cient & Tecn, Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina
推荐引用方式 GB/T 7714	Carayon, Delphine,Adhikari, Kaustubh,Monsarrat, Paul,et al. A geometric morphometric approach to the study of variation of shovel-shaped incisors[J]. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY,2019,168(1):229-241.
APA	Carayon, Delphine.,Adhikari, Kaustubh.,Monsarrat, Paul.,Dumoncel, Jean.,Braga, Jose.,...&Zanolli, Clement.(2019).A geometric morphometric approach to the study of variation of shovel-shaped incisors.AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY,168(1),229-241.
MLA	Carayon, Delphine,et al."A geometric morphometric approach to the study of variation of shovel-shaped incisors".AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 168.1(2019):229-241.