Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/163924 |
Resumo: | Abstract: This study aimed to evaluate the effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin. Sixty root canals from mandibular incisors were instrumented and randomly divided into six groups (n = 10) according to the irrigant used: QMiX, 17% EDTA, 10% citric acid (CA), 1% peracetic acid (PA), 2.5% NaOCl (solution control), and distilled water (negative control). The chelating solutions were used to irrigate the canal followed by 2.5% NaOCl as a final flush. After the irrigation protocols, all specimens were rinsed with 10 mL of distilled water to remove any residue of the chemical solutions. Before and after the final irrigation protocols, dentin microhardness was measured with a Knoop indenter. Three indentations were made at 100 µm and 500 µm from the root canal lumen. Afterwards, the specimens were prepared for scanning electron microscopic analysis and the amount of dentin erosion was examined. Wilcoxon and Kruskal-Wallis tests were used to analyze the results with a significance level set at 5%. At 100 µm, all protocols significantly reduced dentin microhardness (p < .05), while at 500 µm, this effect was detected only in the EDTA and QMiX groups (p < .05). CA was the irrigant that caused more extensive erosion in dentinal tubules, followed by PA and EDTA. QMiX opened dentinal tubules, but did not cause dentin erosion. Results suggest that QMiX and 17% EDTA reduced dentin microhardness at a greater depth. Additionally, QMiX did not cause dentin erosion. |
id |
UFRGS-2_1c6811a511a1efbfd341465def5da943 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/163924 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Baldasso, Flávia Emi RazeraCardoso, Luana RoletoSilva, Vinícius Duval daMorgental, Renata DornellesKopper, Patrícia Maria Poli2017-07-12T02:30:51Z20171806-8324http://hdl.handle.net/10183/163924001025217Abstract: This study aimed to evaluate the effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin. Sixty root canals from mandibular incisors were instrumented and randomly divided into six groups (n = 10) according to the irrigant used: QMiX, 17% EDTA, 10% citric acid (CA), 1% peracetic acid (PA), 2.5% NaOCl (solution control), and distilled water (negative control). The chelating solutions were used to irrigate the canal followed by 2.5% NaOCl as a final flush. After the irrigation protocols, all specimens were rinsed with 10 mL of distilled water to remove any residue of the chemical solutions. Before and after the final irrigation protocols, dentin microhardness was measured with a Knoop indenter. Three indentations were made at 100 µm and 500 µm from the root canal lumen. Afterwards, the specimens were prepared for scanning electron microscopic analysis and the amount of dentin erosion was examined. Wilcoxon and Kruskal-Wallis tests were used to analyze the results with a significance level set at 5%. At 100 µm, all protocols significantly reduced dentin microhardness (p < .05), while at 500 µm, this effect was detected only in the EDTA and QMiX groups (p < .05). CA was the irrigant that caused more extensive erosion in dentinal tubules, followed by PA and EDTA. QMiX opened dentinal tubules, but did not cause dentin erosion. Results suggest that QMiX and 17% EDTA reduced dentin microhardness at a greater depth. Additionally, QMiX did not cause dentin erosion.application/pdfengBrazilian oral research. São Paulo. Vol. 31 (2017), p. e40, 1-8EndodontiaErosão dentáriaPolpa dentáriaEncodonticsRoot Canal IrrigantsHardnessErosionEffect of final irrigation protocols on microhardness reduction and erosion of root canal dentininfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001025217.pdf001025217.pdfTexto completo (inglês)application/pdf1076686http://www.lume.ufrgs.br/bitstream/10183/163924/1/001025217.pdfa092c43078e3308064bdfe005153533eMD51TEXT001025217.pdf.txt001025217.pdf.txtExtracted Texttext/plain28904http://www.lume.ufrgs.br/bitstream/10183/163924/2/001025217.pdf.txt099e98a0f36f20e5f89110acc96d7f29MD52THUMBNAIL001025217.pdf.jpg001025217.pdf.jpgGenerated Thumbnailimage/jpeg2049http://www.lume.ufrgs.br/bitstream/10183/163924/3/001025217.pdf.jpg09c32a960e24002c7c65b843f8e8f069MD5310183/1639242019-05-12 02:36:29.680299oai:www.lume.ufrgs.br:10183/163924Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-05-12T05:36:29Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
title |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
spellingShingle |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin Baldasso, Flávia Emi Razera Endodontia Erosão dentária Polpa dentária Encodontics Root Canal Irrigants Hardness Erosion |
title_short |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
title_full |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
title_fullStr |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
title_full_unstemmed |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
title_sort |
Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin |
author |
Baldasso, Flávia Emi Razera |
author_facet |
Baldasso, Flávia Emi Razera Cardoso, Luana Roleto Silva, Vinícius Duval da Morgental, Renata Dornelles Kopper, Patrícia Maria Poli |
author_role |
author |
author2 |
Cardoso, Luana Roleto Silva, Vinícius Duval da Morgental, Renata Dornelles Kopper, Patrícia Maria Poli |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Baldasso, Flávia Emi Razera Cardoso, Luana Roleto Silva, Vinícius Duval da Morgental, Renata Dornelles Kopper, Patrícia Maria Poli |
dc.subject.por.fl_str_mv |
Endodontia Erosão dentária Polpa dentária |
topic |
Endodontia Erosão dentária Polpa dentária Encodontics Root Canal Irrigants Hardness Erosion |
dc.subject.eng.fl_str_mv |
Encodontics Root Canal Irrigants Hardness Erosion |
description |
Abstract: This study aimed to evaluate the effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin. Sixty root canals from mandibular incisors were instrumented and randomly divided into six groups (n = 10) according to the irrigant used: QMiX, 17% EDTA, 10% citric acid (CA), 1% peracetic acid (PA), 2.5% NaOCl (solution control), and distilled water (negative control). The chelating solutions were used to irrigate the canal followed by 2.5% NaOCl as a final flush. After the irrigation protocols, all specimens were rinsed with 10 mL of distilled water to remove any residue of the chemical solutions. Before and after the final irrigation protocols, dentin microhardness was measured with a Knoop indenter. Three indentations were made at 100 µm and 500 µm from the root canal lumen. Afterwards, the specimens were prepared for scanning electron microscopic analysis and the amount of dentin erosion was examined. Wilcoxon and Kruskal-Wallis tests were used to analyze the results with a significance level set at 5%. At 100 µm, all protocols significantly reduced dentin microhardness (p < .05), while at 500 µm, this effect was detected only in the EDTA and QMiX groups (p < .05). CA was the irrigant that caused more extensive erosion in dentinal tubules, followed by PA and EDTA. QMiX opened dentinal tubules, but did not cause dentin erosion. Results suggest that QMiX and 17% EDTA reduced dentin microhardness at a greater depth. Additionally, QMiX did not cause dentin erosion. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-07-12T02:30:51Z |
dc.date.issued.fl_str_mv |
2017 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/163924 |
dc.identifier.issn.pt_BR.fl_str_mv |
1806-8324 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001025217 |
identifier_str_mv |
1806-8324 001025217 |
url |
http://hdl.handle.net/10183/163924 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Brazilian oral research. São Paulo. Vol. 31 (2017), p. e40, 1-8 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/163924/1/001025217.pdf http://www.lume.ufrgs.br/bitstream/10183/163924/2/001025217.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/163924/3/001025217.pdf.jpg |
bitstream.checksum.fl_str_mv |
a092c43078e3308064bdfe005153533e 099e98a0f36f20e5f89110acc96d7f29 09c32a960e24002c7c65b843f8e8f069 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224921257345024 |