Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample
SUMMARY: Human identification involving mutilation, advanced decomposition, and skeletonized materials is a challenge for professionals in forensic medicine and dentistry. This study was aimed at a morphometric analysis of the mastoid and bimastoid triangles to determine sex in a Brazilian populatio...
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| Lenguaje: | English |
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Sociedad Chilena de Anatomía
2021
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oai:scielo:S0717-950220210004010682021-08-16Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Samplede Castro,Silvana Regina Prado PenteadoHaddad,JulianaFreire,Alexandre RodriguesNeto,Olavo Barbosa de OliveiraPrado,Felippe BevilacquaRossi,Ana CláudiaBérzin,Fausto Sex differences Skull Craniometry Mastoid process SUMMARY: Human identification involving mutilation, advanced decomposition, and skeletonized materials is a challenge for professionals in forensic medicine and dentistry. This study was aimed at a morphometric analysis of the mastoid and bimastoid triangles to determine sex in a Brazilian population. The sample included 80 human skulls (34 females and 46 males; age: 18 to 60 years) from individuals with death certificates. Linear measurements (mm) of the mastoid process - right (n=3) and left (n=3) - and the opisthion- bimastoid (n=3) triangles were taken (digital caliper) by two previously trained researchers. Three cranial points - asterion, porion and process - were determined for the right and left mastoid triangle and three others - (1) opisthion and (2) right and (3) left mastoid - for the bimastoid triangle. Heron’s formula was used to calculate the area of the triangles assessed. Data were submitted to the Shapiro- Wilk normality test, followed by the unpaired Student's t test or the Mann-Whitney U test, depending on the data distribution verified in the normality test (GraphPad Prism 5.01; p<0.05). The ROC curve was used to measure the accuracy of the variables toward sex determination. The opisthion-bimastoid triangle showed high accuracy and significant differences in all the variables assessed and thus was considered a potential element for sex determination in the Brazilian population assessed.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.39 n.4 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000401068en10.4067/S0717-95022021000401068 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Sex differences Skull Craniometry Mastoid process |
| spellingShingle |
Sex differences Skull Craniometry Mastoid process de Castro,Silvana Regina Prado Penteado Haddad,Juliana Freire,Alexandre Rodrigues Neto,Olavo Barbosa de Oliveira Prado,Felippe Bevilacqua Rossi,Ana Cláudia Bérzin,Fausto Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| description |
SUMMARY: Human identification involving mutilation, advanced decomposition, and skeletonized materials is a challenge for professionals in forensic medicine and dentistry. This study was aimed at a morphometric analysis of the mastoid and bimastoid triangles to determine sex in a Brazilian population. The sample included 80 human skulls (34 females and 46 males; age: 18 to 60 years) from individuals with death certificates. Linear measurements (mm) of the mastoid process - right (n=3) and left (n=3) - and the opisthion- bimastoid (n=3) triangles were taken (digital caliper) by two previously trained researchers. Three cranial points - asterion, porion and process - were determined for the right and left mastoid triangle and three others - (1) opisthion and (2) right and (3) left mastoid - for the bimastoid triangle. Heron’s formula was used to calculate the area of the triangles assessed. Data were submitted to the Shapiro- Wilk normality test, followed by the unpaired Student's t test or the Mann-Whitney U test, depending on the data distribution verified in the normality test (GraphPad Prism 5.01; p<0.05). The ROC curve was used to measure the accuracy of the variables toward sex determination. The opisthion-bimastoid triangle showed high accuracy and significant differences in all the variables assessed and thus was considered a potential element for sex determination in the Brazilian population assessed. |
| author |
de Castro,Silvana Regina Prado Penteado Haddad,Juliana Freire,Alexandre Rodrigues Neto,Olavo Barbosa de Oliveira Prado,Felippe Bevilacqua Rossi,Ana Cláudia Bérzin,Fausto |
| author_facet |
de Castro,Silvana Regina Prado Penteado Haddad,Juliana Freire,Alexandre Rodrigues Neto,Olavo Barbosa de Oliveira Prado,Felippe Bevilacqua Rossi,Ana Cláudia Bérzin,Fausto |
| author_sort |
de Castro,Silvana Regina Prado Penteado |
| title |
Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| title_short |
Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| title_full |
Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| title_fullStr |
Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| title_full_unstemmed |
Mastoid and Opisthion-Bimastoid Triangles for Sex Determination in a Brazilian Sample |
| title_sort |
mastoid and opisthion-bimastoid triangles for sex determination in a brazilian sample |
| publisher |
Sociedad Chilena de Anatomía |
| publishDate |
2021 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000401068 |
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