Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-023-31595-8 http://hdl.handle.net/11449/248576 |
Resumo: | The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi‐square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen. |
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Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessmentThe aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi‐square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Restorative Dentistry Araraquara Dental School São Paulo State University (UNESP) School of Dentistry, Rua Humaitá, 1680, SPOMFS IMPATH Research Group Department of Imaging and Pathology Faculty of Medicine KU Leuven and Oral and Maxillofacial Surgery University Hospitals LeuvenDepartment of Dentistry Faculty of Health Sciences University of BrasíliaDepartment of Oral Health Sciences Endodontology and BIOMAT-Biomaterials Research Group KU Leuven (University of Leuven) UZ Leuven (University Hospitals Leuven) DentistryDepartment of Dental Medicine Karolinska InstitutetDepartment of Restorative Dentistry Araraquara Dental School São Paulo State University (UNESP) School of Dentistry, Rua Humaitá, 1680, SPFAPESP: FAPESP (2019/22885-0)Universidade Estadual Paulista (UNESP)University Hospitals LeuvenUniversity of BrasíliaDentistryKarolinska InstitutetPinto, Jader Camilo [UNESP]de Faria-Vasconcelos, KarlaLeite, André FerreiraPedano, Mariano SimónGuerreiro-Tanomaru, Juliane [UNESP]Jacobs, ReinhildeTanomaru-Filho, Mario [UNESP]2023-07-29T13:47:49Z2023-07-29T13:47:49Z2023-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1038/s41598-023-31595-8Scientific Reports, v. 13, n. 1, 2023.2045-2322http://hdl.handle.net/11449/24857610.1038/s41598-023-31595-82-s2.0-85150945010Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reportsinfo:eu-repo/semantics/openAccess2023-07-29T13:47:49Zoai:repositorio.unesp.br:11449/248576Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:47:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
title |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
spellingShingle |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment Pinto, Jader Camilo [UNESP] |
title_short |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
title_full |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
title_fullStr |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
title_full_unstemmed |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
title_sort |
Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
author |
Pinto, Jader Camilo [UNESP] |
author_facet |
Pinto, Jader Camilo [UNESP] de Faria-Vasconcelos, Karla Leite, André Ferreira Pedano, Mariano Simón Guerreiro-Tanomaru, Juliane [UNESP] Jacobs, Reinhilde Tanomaru-Filho, Mario [UNESP] |
author_role |
author |
author2 |
de Faria-Vasconcelos, Karla Leite, André Ferreira Pedano, Mariano Simón Guerreiro-Tanomaru, Juliane [UNESP] Jacobs, Reinhilde Tanomaru-Filho, Mario [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University Hospitals Leuven University of Brasília Dentistry Karolinska Institutet |
dc.contributor.author.fl_str_mv |
Pinto, Jader Camilo [UNESP] de Faria-Vasconcelos, Karla Leite, André Ferreira Pedano, Mariano Simón Guerreiro-Tanomaru, Juliane [UNESP] Jacobs, Reinhilde Tanomaru-Filho, Mario [UNESP] |
description |
The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi‐square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:47:49Z 2023-07-29T13:47:49Z 2023-12-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1038/s41598-023-31595-8 Scientific Reports, v. 13, n. 1, 2023. 2045-2322 http://hdl.handle.net/11449/248576 10.1038/s41598-023-31595-8 2-s2.0-85150945010 |
url |
http://dx.doi.org/10.1038/s41598-023-31595-8 http://hdl.handle.net/11449/248576 |
identifier_str_mv |
Scientific Reports, v. 13, n. 1, 2023. 2045-2322 10.1038/s41598-023-31595-8 2-s2.0-85150945010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientific Reports |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965672643493888 |