Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications

The search of morphological patterns of nasal profile using traditional morphometrics has been the goal of several studies aiming to orient therapeutical planning and forensic techniques such as facial reconstruction. The present study aims to find and describe such patterns with geometric morphomet...

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Autores principales:	López,Bernarda, Toro,Viviana, Schilling,Alejandro, Suazo Galdames,Iván
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2012
Materias:	Nasal profile Geometric morphometrics Sexual dimorphism
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100054
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spelling	oai:scielo:S0717-950220120001000542012-06-08Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic ImplicationsLópez,BernardaToro,VivianaSchilling,AlejandroSuazo Galdames,Iván Nasal profile Geometric morphometrics Sexual dimorphism The search of morphological patterns of nasal profile using traditional morphometrics has been the goal of several studies aiming to orient therapeutical planning and forensic techniques such as facial reconstruction. The present study aims to find and describe such patterns with geometric morphometric tools in a sample of Chilean population with geometric morphometric tools. We used the lateral X-rays of 156 individuals (men and women) and 14 landmarks in bone and soft tissues. Procrustes analysis was performed followed by principal component analysis to assess general shape variation, regression of shape components against centroid size to study to allometric effect and discriminant analysis by sex with cross-validation test. Our results show the lack of shape patterns, and that the size, followed by sex, explains within a limited scope the shape changes which suggests the presence of uncontrolled variables and a high effect of inter-individual variation. In general terms bigger profiles, more frequent in men, show a lower Pronasal point, a more prominent nasal dorsum with a thicker layer of soft tissue, and a vertically expanded upper lip. We suggest the reassessment of the importance of individual aesthetic evaluation for clinical purposes, and recommend caution in concluding results based on forensic reconstruction techniques.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.30 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100054en10.4067/S0717-95022012000100054
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nasal profile Geometric morphometrics Sexual dimorphism
spellingShingle	Nasal profile Geometric morphometrics Sexual dimorphism López,Bernarda Toro,Viviana Schilling,Alejandro Suazo Galdames,Iván Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
description	The search of morphological patterns of nasal profile using traditional morphometrics has been the goal of several studies aiming to orient therapeutical planning and forensic techniques such as facial reconstruction. The present study aims to find and describe such patterns with geometric morphometric tools in a sample of Chilean population with geometric morphometric tools. We used the lateral X-rays of 156 individuals (men and women) and 14 landmarks in bone and soft tissues. Procrustes analysis was performed followed by principal component analysis to assess general shape variation, regression of shape components against centroid size to study to allometric effect and discriminant analysis by sex with cross-validation test. Our results show the lack of shape patterns, and that the size, followed by sex, explains within a limited scope the shape changes which suggests the presence of uncontrolled variables and a high effect of inter-individual variation. In general terms bigger profiles, more frequent in men, show a lower Pronasal point, a more prominent nasal dorsum with a thicker layer of soft tissue, and a vertically expanded upper lip. We suggest the reassessment of the importance of individual aesthetic evaluation for clinical purposes, and recommend caution in concluding results based on forensic reconstruction techniques.
author	López,Bernarda Toro,Viviana Schilling,Alejandro Suazo Galdames,Iván
author_facet	López,Bernarda Toro,Viviana Schilling,Alejandro Suazo Galdames,Iván
author_sort	López,Bernarda
title	Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
title_short	Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
title_full	Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
title_fullStr	Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
title_full_unstemmed	Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications
title_sort	nasal profile assessment using geometric morphometrics in a sample of chilean population: clinical and forensic implications
publisher	Sociedad Chilena de Anatomía
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100054
work_keys_str_mv	AT lopezbernarda nasalprofileassessmentusinggeometricmorphometricsinasampleofchileanpopulationclinicalandforensicimplications AT toroviviana nasalprofileassessmentusinggeometricmorphometricsinasampleofchileanpopulationclinicalandforensicimplications AT schillingalejandro nasalprofileassessmentusinggeometricmorphometricsinasampleofchileanpopulationclinicalandforensicimplications AT suazogaldamesivan nasalprofileassessmentusinggeometricmorphometricsinasampleofchileanpopulationclinicalandforensicimplications
_version_	1718444771873128448

Nasal Profile Assessment Using Geometric Morphometrics in a Sample of Chilean Population: Clinical and Forensic Implications

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