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Research Articles
- Cleaning protocols to enhance bond strength of fiberglass posts on root canals filled with bioceramic sealer: an in vitro comparative study
- Thiago Bessa Marconato Antunes, Juliana Delatorre Bronzato, Joice Graciani, Ana Cristina Padilha Janini, Rocharles Cavalcante Fontenele, Francisco Haiter Neto, Brenda Paula Figueiredo de Almeida Gomes, Marina Angélica Marciano da Silva
- Restor Dent Endod 2025;50(2):e20. Published online May 21, 2025
- DOI: https://doi.org/10.5395/rde.2025.50.e20
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Abstract
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ePub - Objectives
This study aimed to evaluate whether the agitation protocols using ultrasonic inserts or the XP-endo Finisher R file improved the removal of two different endodontic sealer remnants and the bond strength of fiberglass posts to dentin.
Methods
Seventy-two human teeth were selected. The canals were prepared with Reciproc 50 and Easy ProDesign 30/.10 and root filled according to the endodontic sealer groups: AH Plus or EndoSequence BC Sealer HiFlow. The samples were kept at 37ºC and 95% humidity for 28 days. During the post space preparation, the obturation was removed with Largo burs, and the groups were divided according to the irrigant agitation protocols (n = 12): no agitation, agitation with R1-Clearsonic associated with E1-Irrisonic ultrasonic inserts, or agitation with XP-endo Finisher R file. The fiberglass posts were cemented with RelyX ARC. The roots were sectioned into slices and submitted to the push-out test. Micro-computed tomography analysis was used to check the effectiveness of irrigating solution agitation in the elimination of remnants.
Results
The cleaning protocols with agitation were more effective in increasing the bond strength of posts to dentin for both sealer groups compared to non-agitation (p < 0.05). There was no difference between the same cleaning protocols for the different sealers. Among the different thirds, there was no statistical difference for the same sealer in the different cleaning protocols (p > 0.05).
Conclusions
Both agitation protocols effectively clean root-filled canals sealed with resin-based and calcium silicate-based sealers during fiberglass post space preparation. These protocols result in improved bond strength compared to non-agitation methods.
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The effect of individualization of fiberglass posts using bulk-fill resin-based composites on cementation: an
in vitro study - Rodrigo Barros Esteves Lins, Jairo Matozinho Cordeiro, Carolina Perez Rangel, Thiago Bessa Marconato Antunes, Luís Roberto Marcondes Martins
- Restor Dent Endod 2019;44(4):e37. Published online October 18, 2019
- DOI: https://doi.org/10.5395/rde.2019.44.e37
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Abstract
PDFPubReaderePub
Objectives This study evaluated the bond strength of various fiberglass post cementation techniques using different resin-based composites.
Materials and Methods The roots from a total of 100 bovine incisors were randomly assigned to 5 treatment groups: G1, post + Scotchbond Multi-Purpose (SBMP) + RelyX ARC luting agent; G2, relined post (Filtek Z250) + SBMP + RelyX ARC; G3, individualized post (Filtek Z250) + SBMP; G4, individualized post (Filtek Bulk-Fill) + SBMP; G5, individualized post (Filtek Bulk-Fill Flow) + SBMP. The samples were subjected to the push-out (
n = 10) and pull-out (n = 10) bond strength tests. Data from the push-out bond strength test were analyzed using 2-way analysis of variance (ANOVA) with the Bonferronipost hoc test, and data from the pull-out bond strength test were analyzed using 1-way ANOVA.Results The data for push-out bond strength presented higher values for G2 and G5, mainly in the cervical and middle thirds, and the data from the apical third showed a lower mean push-out bond strength in all groups. No significant difference was noted for pull-out bond strength among all groups. The most frequent failure modes observed were adhesive failure between dentine and resin and mixed failure.
Conclusions Fiberglass post cementation using restorative and flowable bulk-fill composites with the individualization technique may be a promising alternative to existing methods of post cementation.
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Citations
Citations to this article as recorded by
- Effects of a relined fiberglass post with conventional and self-adhesive resin cement
Wilton Lima dos Santos Junior, Marina Rodrigues Santi, Rodrigo Barros Esteves Lins, Luís Roberto Marcondes Martins
Restorative Dentistry & Endodontics.2024;[Epub] CrossRef - Fracture resistance of weakened roots restored with relined or milled CAD-CAM glass fiber posts
Belizane das Graças Oliveira MAIA, Thais da Silva Alves SANTOS, Cláudio Antonio Talge CARVALHO, Francielle Silvestre VERNER, Rafael Binato JUNQUEIRA
Dental Materials Journal.2023; 42(1): 92. CrossRef - Evaluation of pretreatments on intra‐radicular dentin bond strength of self‐adhesive resin cements
Marina Rodrigues Santi, Rodrigo Barros Esteves Lins, Beatriz Ometto Sahadi, Luís Roberto Marcondes Martins, Jorge Rodrigo Soto‐Montero
Journal of Esthetic and Restorative Dentistry.2022; 34(7): 1051. CrossRef - Comparison of the Mechanical Properties and Push-out Bond Strength of Self-adhesive and Conventional Resin Cements on Fiber Post Cementation
MR Santi, RBE Lins, BO Sahadi, JR Soto-Montero, LRM Martins
Operative Dentistry.2022; 47(3): 346. CrossRef - Glass fiber posts
Renata Pereira, Rodrigo Barros Esteves Lins, Victória Castelan Rodrigues, Débora Alves Nunes Leite Lima, Luís Roberto Marcondes Martins, Flávio Henrique Baggio Aguiar
Brazilian Journal of Oral Sciences.2020; 19: e207508. CrossRef
- Effects of a relined fiberglass post with conventional and self-adhesive resin cement
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