Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/239892 |
Resumo: | Background: Evaluate the fracture resistance of endodontically treated teeth after cervical preflaring and root canal preparation and to assess the volume of the root canal and the amount of remaining root dentin before and after cervical preflaring. Methods: Forty-four mandibular incisors were selected using micro-CT scanning and distributed into 4 groups (n = 11) according to the instrument used for cervical preflaring: control group - no cervical preflaring; Gates Glidden – burs size #2 and #3; WXN – 25.07 Navigator instrument; and Easy – 25.08 ProDesign S instrument. Coronal opening was performed, and the canals were prepared with Wave One Gold Primary and filled with an epoxy-resin based sealer and gutta-percha cones. Micro-CT scans were performed before and after root canal instrumentation. All images were reconstructed and assessed for the thickness of mesial and distal root dentin at 3 mm and 5 mm from the cement -enamel junction and for the volume of cervical portion of the canal after preparation. Fracture resistance test was performed applying compressive loads at a crosshead speed of 0.5 mm/min, applied on the palatal aspect of specimens at 135° along the long axis of the tooth. The data were analyzed using ANOVA and Tukey’s test (P = .05). Results: Cervical preflaring and canal preparation reduced the dentin thickness (P < .05) and increased the canal volume (P < .05) in all groups at 3 mm an 5 mm. Cervical preflaring with Gates Gliden burs reduced the fracture resistance of endodontically treated teeth (P < .05). Conclusions: All instruments reduced the dentin thickness and increased the canal volume in the cervical at 3 mm and 5 mm. Gates Glidden reduced fracture resistance of mandibular incisors submitted to cervical preflaring, whereas NiTi instruments did not. |
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Silva, Paula Barcellos daDuarte, Simone FerettiAlcalde, Murilo PrioriDuarte, Marco Antonio HúngaroVivan, Rodrigo RicciRosa, Ricardo Abreu daSó, Marcus Vinicius ReisNascimento, Angela Longo do2022-06-07T04:41:05Z20201472-6831http://hdl.handle.net/10183/239892001142151Background: Evaluate the fracture resistance of endodontically treated teeth after cervical preflaring and root canal preparation and to assess the volume of the root canal and the amount of remaining root dentin before and after cervical preflaring. Methods: Forty-four mandibular incisors were selected using micro-CT scanning and distributed into 4 groups (n = 11) according to the instrument used for cervical preflaring: control group - no cervical preflaring; Gates Glidden – burs size #2 and #3; WXN – 25.07 Navigator instrument; and Easy – 25.08 ProDesign S instrument. Coronal opening was performed, and the canals were prepared with Wave One Gold Primary and filled with an epoxy-resin based sealer and gutta-percha cones. Micro-CT scans were performed before and after root canal instrumentation. All images were reconstructed and assessed for the thickness of mesial and distal root dentin at 3 mm and 5 mm from the cement -enamel junction and for the volume of cervical portion of the canal after preparation. Fracture resistance test was performed applying compressive loads at a crosshead speed of 0.5 mm/min, applied on the palatal aspect of specimens at 135° along the long axis of the tooth. The data were analyzed using ANOVA and Tukey’s test (P = .05). Results: Cervical preflaring and canal preparation reduced the dentin thickness (P < .05) and increased the canal volume (P < .05) in all groups at 3 mm an 5 mm. Cervical preflaring with Gates Gliden burs reduced the fracture resistance of endodontically treated teeth (P < .05). Conclusions: All instruments reduced the dentin thickness and increased the canal volume in the cervical at 3 mm and 5 mm. Gates Glidden reduced fracture resistance of mandibular incisors submitted to cervical preflaring, whereas NiTi instruments did not.application/pdfengBMC oral health. London. Vol. 20 (2020), 111, 7 p.EndodontiaPreparo de canal radicularMicrotomografia por raio-xEndodonticsRoot canal preparationX-ray microtomographyInfluence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teethEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001142151.pdf.txt001142151.pdf.txtExtracted Texttext/plain29137http://www.lume.ufrgs.br/bitstream/10183/239892/2/001142151.pdf.txta76bf36f22e11c68ea3a13284510890aMD52ORIGINAL001142151.pdfTexto completo (inglês)application/pdf769693http://www.lume.ufrgs.br/bitstream/10183/239892/1/001142151.pdfe75f139ba578358e8c76c94e22846b30MD5110183/2398922022-06-08 04:40:46.990809oai:www.lume.ufrgs.br:10183/239892Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-06-08T07:40:46Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
title |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
spellingShingle |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth Silva, Paula Barcellos da Endodontia Preparo de canal radicular Microtomografia por raio-x Endodontics Root canal preparation X-ray microtomography |
title_short |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
title_full |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
title_fullStr |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
title_full_unstemmed |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
title_sort |
Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth |
author |
Silva, Paula Barcellos da |
author_facet |
Silva, Paula Barcellos da Duarte, Simone Feretti Alcalde, Murilo Priori Duarte, Marco Antonio Húngaro Vivan, Rodrigo Ricci Rosa, Ricardo Abreu da Só, Marcus Vinicius Reis Nascimento, Angela Longo do |
author_role |
author |
author2 |
Duarte, Simone Feretti Alcalde, Murilo Priori Duarte, Marco Antonio Húngaro Vivan, Rodrigo Ricci Rosa, Ricardo Abreu da Só, Marcus Vinicius Reis Nascimento, Angela Longo do |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Paula Barcellos da Duarte, Simone Feretti Alcalde, Murilo Priori Duarte, Marco Antonio Húngaro Vivan, Rodrigo Ricci Rosa, Ricardo Abreu da Só, Marcus Vinicius Reis Nascimento, Angela Longo do |
dc.subject.por.fl_str_mv |
Endodontia Preparo de canal radicular Microtomografia por raio-x |
topic |
Endodontia Preparo de canal radicular Microtomografia por raio-x Endodontics Root canal preparation X-ray microtomography |
dc.subject.eng.fl_str_mv |
Endodontics Root canal preparation X-ray microtomography |
description |
Background: Evaluate the fracture resistance of endodontically treated teeth after cervical preflaring and root canal preparation and to assess the volume of the root canal and the amount of remaining root dentin before and after cervical preflaring. Methods: Forty-four mandibular incisors were selected using micro-CT scanning and distributed into 4 groups (n = 11) according to the instrument used for cervical preflaring: control group - no cervical preflaring; Gates Glidden – burs size #2 and #3; WXN – 25.07 Navigator instrument; and Easy – 25.08 ProDesign S instrument. Coronal opening was performed, and the canals were prepared with Wave One Gold Primary and filled with an epoxy-resin based sealer and gutta-percha cones. Micro-CT scans were performed before and after root canal instrumentation. All images were reconstructed and assessed for the thickness of mesial and distal root dentin at 3 mm and 5 mm from the cement -enamel junction and for the volume of cervical portion of the canal after preparation. Fracture resistance test was performed applying compressive loads at a crosshead speed of 0.5 mm/min, applied on the palatal aspect of specimens at 135° along the long axis of the tooth. The data were analyzed using ANOVA and Tukey’s test (P = .05). Results: Cervical preflaring and canal preparation reduced the dentin thickness (P < .05) and increased the canal volume (P < .05) in all groups at 3 mm an 5 mm. Cervical preflaring with Gates Gliden burs reduced the fracture resistance of endodontically treated teeth (P < .05). Conclusions: All instruments reduced the dentin thickness and increased the canal volume in the cervical at 3 mm and 5 mm. Gates Glidden reduced fracture resistance of mandibular incisors submitted to cervical preflaring, whereas NiTi instruments did not. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2022-06-07T04:41:05Z |
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Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/239892 |
dc.identifier.issn.pt_BR.fl_str_mv |
1472-6831 |
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001142151 |
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http://hdl.handle.net/10183/239892 |
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eng |
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dc.relation.ispartof.pt_BR.fl_str_mv |
BMC oral health. London. Vol. 20 (2020), 111, 7 p. |
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openAccess |
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