Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1412 |
Resumo: | Objective: The aim of this study was to assess the amount of chemical elements (Ca, O, C, P, Fe, and Mg) and the cross-section hardness of sclerotic darkened dentin in human teeth. Material and Methods: The study was approved by the local IRB and ten extracted teeth (five sound and five presenting sclerotic darkened dentin) were used. Tooth was sectioned mesiodistally and each half was used for each test. Amount of chemical elements (%w) was determined by energy dispersive X-ray spectroscopy (EDS) in three different dentin areas (shallow, medium, or deep sound or sclerotic dentin). Knoop microhardness was determined at the same EDS areas. Data were analyzed by two-way ANOVA and multiple comparison tests, with significance level at 5%. Results: No difference on microhardness was detected between sound and sclerotic dentin (p = 0.743) and also among dentin depths (p = 0.837). Lower Ca (p = 0.024) and higher C (p = 0.015) amounts were found at superficial sclerotic dentin. Increased Mg content (p < 0.001) was detected in sound dentin. Conclusion: It was concluded darkened sclerotic dentin presents similar cross-section microhardness to sound dentin. The assessed chemical elements were similarly present in sound or sclerotic dentin, except for Mg, which was present higher concentration in sound dentin. Ca and P were lower in superficial sclerotic dentin. Keywords: Dentin; Hardness; Minerals; Tooth Remineralization. |
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oai:ojs.pkp.sfu.ca:article/1412 |
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UNESP-20 |
network_name_str |
Brazilian Dental Science |
repository_id_str |
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spelling |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentinObjective: The aim of this study was to assess the amount of chemical elements (Ca, O, C, P, Fe, and Mg) and the cross-section hardness of sclerotic darkened dentin in human teeth. Material and Methods: The study was approved by the local IRB and ten extracted teeth (five sound and five presenting sclerotic darkened dentin) were used. Tooth was sectioned mesiodistally and each half was used for each test. Amount of chemical elements (%w) was determined by energy dispersive X-ray spectroscopy (EDS) in three different dentin areas (shallow, medium, or deep sound or sclerotic dentin). Knoop microhardness was determined at the same EDS areas. Data were analyzed by two-way ANOVA and multiple comparison tests, with significance level at 5%. Results: No difference on microhardness was detected between sound and sclerotic dentin (p = 0.743) and also among dentin depths (p = 0.837). Lower Ca (p = 0.024) and higher C (p = 0.015) amounts were found at superficial sclerotic dentin. Increased Mg content (p < 0.001) was detected in sound dentin. Conclusion: It was concluded darkened sclerotic dentin presents similar cross-section microhardness to sound dentin. The assessed chemical elements were similarly present in sound or sclerotic dentin, except for Mg, which was present higher concentration in sound dentin. Ca and P were lower in superficial sclerotic dentin. Keywords: Dentin; Hardness; Minerals; Tooth Remineralization.Institute of Science and Technology of São José dos Campos2017-09-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/141210.14295/bds.2017.v20i3.1412Brazilian Dental Science; Vol. 20 No. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 58-64Brazilian Dental Science; v. 20 n. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 58-642178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1412/1169https://ojs.ict.unesp.br/index.php/cob/article/view/1412/2963https://ojs.ict.unesp.br/index.php/cob/article/view/1412/2964Copyright (c) 2017 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessSouza, Mauricio YugoMeirelles, Laura Celia FernandesDuque, Isabela Roberta VieiraMailart, Mariane CintraCaneppele, Taciana Marco FerrazBresciani, Eduardo2020-01-28T12:13:41Zoai:ojs.pkp.sfu.ca:article/1412Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:12.046790Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
title |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
spellingShingle |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin Souza, Mauricio Yugo |
title_short |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
title_full |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
title_fullStr |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
title_full_unstemmed |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
title_sort |
Determination of chemical elements and cross-section hardness of sclerotic darkened human dentin |
author |
Souza, Mauricio Yugo |
author_facet |
Souza, Mauricio Yugo Meirelles, Laura Celia Fernandes Duque, Isabela Roberta Vieira Mailart, Mariane Cintra Caneppele, Taciana Marco Ferraz Bresciani, Eduardo |
author_role |
author |
author2 |
Meirelles, Laura Celia Fernandes Duque, Isabela Roberta Vieira Mailart, Mariane Cintra Caneppele, Taciana Marco Ferraz Bresciani, Eduardo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Mauricio Yugo Meirelles, Laura Celia Fernandes Duque, Isabela Roberta Vieira Mailart, Mariane Cintra Caneppele, Taciana Marco Ferraz Bresciani, Eduardo |
description |
Objective: The aim of this study was to assess the amount of chemical elements (Ca, O, C, P, Fe, and Mg) and the cross-section hardness of sclerotic darkened dentin in human teeth. Material and Methods: The study was approved by the local IRB and ten extracted teeth (five sound and five presenting sclerotic darkened dentin) were used. Tooth was sectioned mesiodistally and each half was used for each test. Amount of chemical elements (%w) was determined by energy dispersive X-ray spectroscopy (EDS) in three different dentin areas (shallow, medium, or deep sound or sclerotic dentin). Knoop microhardness was determined at the same EDS areas. Data were analyzed by two-way ANOVA and multiple comparison tests, with significance level at 5%. Results: No difference on microhardness was detected between sound and sclerotic dentin (p = 0.743) and also among dentin depths (p = 0.837). Lower Ca (p = 0.024) and higher C (p = 0.015) amounts were found at superficial sclerotic dentin. Increased Mg content (p < 0.001) was detected in sound dentin. Conclusion: It was concluded darkened sclerotic dentin presents similar cross-section microhardness to sound dentin. The assessed chemical elements were similarly present in sound or sclerotic dentin, except for Mg, which was present higher concentration in sound dentin. Ca and P were lower in superficial sclerotic dentin. Keywords: Dentin; Hardness; Minerals; Tooth Remineralization. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-12 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1412 10.14295/bds.2017.v20i3.1412 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1412 |
identifier_str_mv |
10.14295/bds.2017.v20i3.1412 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1412/1169 https://ojs.ict.unesp.br/index.php/cob/article/view/1412/2963 https://ojs.ict.unesp.br/index.php/cob/article/view/1412/2964 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 20 No. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 58-64 Brazilian Dental Science; v. 20 n. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 58-64 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346899855572992 |