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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Do Irrigation Solutions Influence the Bond Interface Between Glass Fiber Posts and Dentin?

Full text
Author(s):
Thaís Yumi Umeda Suzuki ; Mariana Almeida Pereira [2] ; João Eduardo Gomes-Filho [3] ; Linda Wang [4] ; Wirley Gonçalves Assunção [5] ; Paulo Henrique dos Santos [6]
Total Authors: 6
Document type: Journal article
Source: Brazilian Dental Journal; v. 30, n. 2, p. 106-116, 2019-04-04.
Abstract

Abstract The aim of this study was to evaluate the push-out bond strength and interface permeability of glass-fiber posts in different regions of post space (cervical, middle, and apical) submitted to different irrigation solutions. Ninety single-rooted human teeth were submitted to endodontic treatment and divided into five groups, according to irrigation solutions: distilled water, 5.25% NaOCl, 25% polyacrylic acid, 2% chlorhexidine, and 23 ppm Ag NP dispersion. Each group was divided in 3 subgroups (n=6) according to cementation: SBU: Adper Scotchbond Universal + RelyX ARC; U200: RelyX U200; MCE: MaxCem Elite. Bond strength and sealing ability were measured in different areas of post space. The data was subjected to ANOVA and Fisher’s test (a=0,05). The silver nanoparticle solution showed highest bond strength values and lowest interface permeability in all thirds analyzed for SBU group. In the U200 group, the highest bond strength values were found for sodium hypochlorite solution, with significant difference between this solution and polyacrylic acid. A decrease in bond strength values in cervical to apical direction was found for MCE group and the same behavior were found for others groups. Regarding interface permeability, use of silver nanoparticle solution resulted in lower values in cervical and apical thirds. There was a decrease in bond strength in cervical to apical direction. Different irrigation solutions and intraradicular depth influenced the bond strength and interface permeability of adhesive material to dentin substrate. Silver nanoparticle solution can effectively be used as an irrigation agent in post space prior to fiber post cementation process. (AU)

FAPESP's process: 12/12771-9 - Analysis of the bonding interface between glass fiber posts and intra-root dentin subjected to irrigation with different conditioning agents
Grantee:Thaís Yumi Umeda Suzuki
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/09721-0 - Customized fiberglass post: study of mechanical properties of restorative adhesive interface
Grantee:Paulo Henrique dos Santos
Support Opportunities: Regular Research Grants