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Bond strength and failure mode of glass fiber posts with different surface treatments prior to silanization: An in vitro comparative study

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dc.contributor.author Santander Rengifo, Flor Magaly
dc.contributor.author Castillo Andamayo, Diana Esmeralda
dc.contributor.author Tay Chu Jon, Lidia Yileng
dc.contributor.author López-Gurreonero, C.
dc.contributor.author Cornejo-Pinto, A.
dc.contributor.author Cervantes-Ganoza, L.
dc.contributor.author Cayo-Rojas, C.
dc.date.accessioned 2023-04-16T04:38:12Z
dc.date.available 2023-04-16T04:38:12Z
dc.date.issued 2023
dc.identifier.uri https://hdl.handle.net/20.500.12866/13356
dc.description.abstract Aim: The use of chemical agents in the surface treatment of glass fiber posts can improve their bond strength to the root canal. The aim of this study was to assess the bond strength and failure mode of glass fiber posts that received different surface treatments prior to silanization. Materials and Methods: In this cross-sectional and in vitro experimental study, 50 human lower premolar roots were randomly divided into five groups and subsequently prepared to receive the cementation of a fiberglass post prior to silanization. They were distributed as group 1 (with 24% hydrogen peroxide), group 2 (with 37% phosphoric acid), group 3 (with 1.23% acidulated phosphate fluoride for 2 minutes), group 4 (with 1.23% acidulated phosphate fluoride for 6 minutes), and group 5 (without pretreatment). After cementation, the roots were sectioned into two discs for each cervical, middle, and apical region. Bond strength was assessed using the push out technique. Adhesive, mixed, and cohesive failure modes were also assessed. For data analysis, ANOVA and Tukey's post hoc tests were used, as well as Pearson's chi-square test. A significance of P 0.05 was considered in all statistical analyses. Results: When comparing the bond strength of root regions, significant differences were obtained in groups pretreated with phosphoric acid (P = 0.018) and acidulated phosphate fluoride for 2 and 6 minutes (P = 0.001 and P = 0.000, respectively). Furthermore, significant differences were obtained between posts treated only with silane and those that received phosphoric acid pretreatment (P = 0.006) and acidulated phosphate fluoride for 6 minutes (P = 0.001). Significant association of mixed failure mode was observed with hydrogen peroxide (P = 0.014) and phosphoric acid (P = 0.006) pretreatments. Cohesive failure was significantly associated with acidulated phosphate fluoride pretreatment for 2 minutes (P = 0.032) and with posts that did not receive treatment prior to silanization (P = 0.000). Conclusion: Posts treated only with silane and pretreated with hydrogen peroxide and acidulated phosphate fluoride for 2 minutes presented significantly higher bond strength with respect to those pretreated with phosphoric acid and acidulated phosphate fluoride for 6 minutes. However, acidulated phosphate fluoride for 2 minutes and silane were associated with a better bonding type. © 2023 Wolters Kluwer (UK) Ltd.. All rights reserved. en_US
dc.language.iso eng
dc.publisher Medknow Publications and Media
dc.relation.ispartofseries Journal of International Society of Preventive and Community Dentistry
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Acidulated phosphate fluoride en_US
dc.subject bond strength en_US
dc.subject cementation en_US
dc.subject failure mode en_US
dc.subject glass fiber posts en_US
dc.subject hydrogen peroxide en_US
dc.subject phosphoric acid en_US
dc.subject root bonding en_US
dc.subject silane en_US
dc.title Bond strength and failure mode of glass fiber posts with different surface treatments prior to silanization: An in vitro comparative study en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.4103/jispcd.JISPCD_292_21
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.02.14
dc.relation.issn 2250-1002


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