Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | https://www.revistas.usp.br/jaos/article/view/217823 |
Resumo: | Objective: The use of a fiber glass post (FGP) type and choice of FGP diameter to restore endodontically treated incisors without ferrule is controversial. This study evaluated survival rate and failure mode of severely compromised central incisors without ferrule rehabilitated using resin-based composite (RBC) with or without FGP with different diameters. Methodology: A total of 60 decoronated bovine incisors without a ferrule were endodontically treated and prepared for 1.4, 1.6, and 1.8 mm diameter FGPs (Whitepost System DC 0.5, Fit 0.4, and DCE 0.5; FGM). Half of the teeth received FGPs cemented using dual-cure resin cement (Allcem Core; FGM), the other half were filled using only bulk-fill RBC (OPUS Bulk Fill; FGM). The crowns were directly restored with RBC. The roots were embedded in polystyrene resin and the periodontal ligament was simulated with polyether impression material. Fatigue testing was conducted under 5 Hz cyclic loading at 30 degrees to the incisal edge, beginning at 50 N (5,000 cycles) as a warmup. After, the load was increased 100 N every 15,000 cycles until fracture occurred. All specimens were subjected to transillumination, micro-CT analysis, and digital radiography before and after fatigue testing. Fracture mode was classified according to severity and repair potential. Data were analyzed with Kaplan-Meier survival test and post hoc log-rank test (α=0.05) for pairwise comparisons. Results: Using FGP significantly increased the number of cycles to failure, irrespective of FGP diameters (p=0.001). The FGP diameters had no statistically significant effect on cycles to failure or failure mode. Conclusion: Using FGP without ferrule improved survival rate of structurally severely compromised central incisors compared with rehabilitation without FGP. The diameter of the FGPs had no effect on the survival rate and failure mode. |
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Journal of applied oral science (Online) |
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Survival of severely compromised endodontically treated teeth restored with or without a fiber glass posPost and core techniqueFatigueEndodontically-treated teethComposite resinsObjective: The use of a fiber glass post (FGP) type and choice of FGP diameter to restore endodontically treated incisors without ferrule is controversial. This study evaluated survival rate and failure mode of severely compromised central incisors without ferrule rehabilitated using resin-based composite (RBC) with or without FGP with different diameters. Methodology: A total of 60 decoronated bovine incisors without a ferrule were endodontically treated and prepared for 1.4, 1.6, and 1.8 mm diameter FGPs (Whitepost System DC 0.5, Fit 0.4, and DCE 0.5; FGM). Half of the teeth received FGPs cemented using dual-cure resin cement (Allcem Core; FGM), the other half were filled using only bulk-fill RBC (OPUS Bulk Fill; FGM). The crowns were directly restored with RBC. The roots were embedded in polystyrene resin and the periodontal ligament was simulated with polyether impression material. Fatigue testing was conducted under 5 Hz cyclic loading at 30 degrees to the incisal edge, beginning at 50 N (5,000 cycles) as a warmup. After, the load was increased 100 N every 15,000 cycles until fracture occurred. All specimens were subjected to transillumination, micro-CT analysis, and digital radiography before and after fatigue testing. Fracture mode was classified according to severity and repair potential. Data were analyzed with Kaplan-Meier survival test and post hoc log-rank test (α=0.05) for pairwise comparisons. Results: Using FGP significantly increased the number of cycles to failure, irrespective of FGP diameters (p=0.001). The FGP diameters had no statistically significant effect on cycles to failure or failure mode. Conclusion: Using FGP without ferrule improved survival rate of structurally severely compromised central incisors compared with rehabilitation without FGP. The diameter of the FGPs had no effect on the survival rate and failure mode.Universidade de São Paulo. Faculdade de Odontologia de Bauru2023-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/21782310.1590/1678-7757-2023-0241Journal of Applied Oral Science; Vol. 31 (2023); e20230241Journal of Applied Oral Science; v. 31 (2023); e20230241Journal of Applied Oral Science; Vol. 31 (2023); e202302411678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/217823/199151Copyright (c) 2023 Journal of Applied Oral Sciencehttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRibeiro, Maria Tereza HordonesOliveira, Gabriella deOliveira, Helena Letícia Quirino deMendoza, Lilibeth Carola LeytonMelo, Calebe dePeres, Thiago SilvaSoares, Carlos José2024-02-07T17:41:05Zoai:revistas.usp.br:article/217823Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2024-02-07T17:41:05Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
title |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
spellingShingle |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos Ribeiro, Maria Tereza Hordones Post and core technique Fatigue Endodontically-treated teeth Composite resins |
title_short |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
title_full |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
title_fullStr |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
title_full_unstemmed |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
title_sort |
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass pos |
author |
Ribeiro, Maria Tereza Hordones |
author_facet |
Ribeiro, Maria Tereza Hordones Oliveira, Gabriella de Oliveira, Helena Letícia Quirino de Mendoza, Lilibeth Carola Leyton Melo, Calebe de Peres, Thiago Silva Soares, Carlos José |
author_role |
author |
author2 |
Oliveira, Gabriella de Oliveira, Helena Letícia Quirino de Mendoza, Lilibeth Carola Leyton Melo, Calebe de Peres, Thiago Silva Soares, Carlos José |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Ribeiro, Maria Tereza Hordones Oliveira, Gabriella de Oliveira, Helena Letícia Quirino de Mendoza, Lilibeth Carola Leyton Melo, Calebe de Peres, Thiago Silva Soares, Carlos José |
dc.subject.por.fl_str_mv |
Post and core technique Fatigue Endodontically-treated teeth Composite resins |
topic |
Post and core technique Fatigue Endodontically-treated teeth Composite resins |
description |
Objective: The use of a fiber glass post (FGP) type and choice of FGP diameter to restore endodontically treated incisors without ferrule is controversial. This study evaluated survival rate and failure mode of severely compromised central incisors without ferrule rehabilitated using resin-based composite (RBC) with or without FGP with different diameters. Methodology: A total of 60 decoronated bovine incisors without a ferrule were endodontically treated and prepared for 1.4, 1.6, and 1.8 mm diameter FGPs (Whitepost System DC 0.5, Fit 0.4, and DCE 0.5; FGM). Half of the teeth received FGPs cemented using dual-cure resin cement (Allcem Core; FGM), the other half were filled using only bulk-fill RBC (OPUS Bulk Fill; FGM). The crowns were directly restored with RBC. The roots were embedded in polystyrene resin and the periodontal ligament was simulated with polyether impression material. Fatigue testing was conducted under 5 Hz cyclic loading at 30 degrees to the incisal edge, beginning at 50 N (5,000 cycles) as a warmup. After, the load was increased 100 N every 15,000 cycles until fracture occurred. All specimens were subjected to transillumination, micro-CT analysis, and digital radiography before and after fatigue testing. Fracture mode was classified according to severity and repair potential. Data were analyzed with Kaplan-Meier survival test and post hoc log-rank test (α=0.05) for pairwise comparisons. Results: Using FGP significantly increased the number of cycles to failure, irrespective of FGP diameters (p=0.001). The FGP diameters had no statistically significant effect on cycles to failure or failure mode. Conclusion: Using FGP without ferrule improved survival rate of structurally severely compromised central incisors compared with rehabilitation without FGP. The diameter of the FGPs had no effect on the survival rate and failure mode. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-27 |
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://www.revistas.usp.br/jaos/article/view/217823 10.1590/1678-7757-2023-0241 |
url |
https://www.revistas.usp.br/jaos/article/view/217823 |
identifier_str_mv |
10.1590/1678-7757-2023-0241 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/217823/199151 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Journal of Applied Oral Science http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Journal of Applied Oral Science http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science; Vol. 31 (2023); e20230241 Journal of Applied Oral Science; v. 31 (2023); e20230241 Journal of Applied Oral Science; Vol. 31 (2023); e20230241 1678-7765 1678-7757 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1800221670379618304 |