Cargando…

Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post

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 com...

Descripción completa

Detalles Bibliográficos
Autores principales: RIBEIRO, Maria Tereza Hordones, de OLIVEIRA, Gabriella, de OLIVEIRA, Helena Letícia Quirino, MENDOZA, Lilibeth Carola Leyton, de MELO, Calebe, Silva PERES, Thiago, SOARES, Carlos José
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade De Odontologia De Bauru - USP 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10609643/
https://www.ncbi.nlm.nih.gov/pubmed/37909530
http://dx.doi.org/10.1590/1678-7757-2023-0241
_version_ 1785128061581131776
author RIBEIRO, Maria Tereza Hordones
de OLIVEIRA, Gabriella
de OLIVEIRA, Helena Letícia Quirino
MENDOZA, Lilibeth Carola Leyton
de MELO, Calebe
Silva PERES, Thiago
SOARES, Carlos José
author_facet RIBEIRO, Maria Tereza Hordones
de OLIVEIRA, Gabriella
de OLIVEIRA, Helena Letícia Quirino
MENDOZA, Lilibeth Carola Leyton
de MELO, Calebe
Silva PERES, Thiago
SOARES, Carlos José
author_sort RIBEIRO, Maria Tereza Hordones
collection PubMed
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.
format Online
Article
Text
id pubmed-10609643
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Faculdade De Odontologia De Bauru - USP
record_format MEDLINE/PubMed
spelling pubmed-106096432023-10-28 Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post RIBEIRO, Maria Tereza Hordones de OLIVEIRA, Gabriella de OLIVEIRA, Helena Letícia Quirino MENDOZA, Lilibeth Carola Leyton de MELO, Calebe Silva PERES, Thiago SOARES, Carlos José J Appl Oral Sci Original Article 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. Faculdade De Odontologia De Bauru - USP 2023-10-27 /pmc/articles/PMC10609643/ /pubmed/37909530 http://dx.doi.org/10.1590/1678-7757-2023-0241 Text en https://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
RIBEIRO, Maria Tereza Hordones
de OLIVEIRA, Gabriella
de OLIVEIRA, Helena Letícia Quirino
MENDOZA, Lilibeth Carola Leyton
de MELO, Calebe
Silva PERES, Thiago
SOARES, Carlos José
Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title_full Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title_fullStr Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title_full_unstemmed Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title_short Survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
title_sort survival of severely compromised endodontically treated teeth restored with or without a fiber glass post
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10609643/
https://www.ncbi.nlm.nih.gov/pubmed/37909530
http://dx.doi.org/10.1590/1678-7757-2023-0241
work_keys_str_mv AT ribeiromariaterezahordones survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT deoliveiragabriella survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT deoliveirahelenaleticiaquirino survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT mendozalilibethcarolaleyton survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT demelocalebe survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT silvaperesthiago survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost
AT soarescarlosjose survivalofseverelycompromisedendodonticallytreatedteethrestoredwithorwithoutafiberglasspost