Effect of phytic acid as an endodontic chelator on resin adhesion to sodium hypochlorite-treated dentin.
Bond strength
EDTA
Phytic acid
Reaction
Resin tag
Sodium hypochlorite
Journal
Restorative dentistry & endodontics
ISSN: 2234-7658
Titre abrégé: Restor Dent Endod
Pays: Korea (South)
ID NLM: 101584377
Informations de publication
Date de publication:
Nov 2020
Nov 2020
Historique:
received:
09
01
2020
revised:
08
03
2020
accepted:
10
03
2020
entrez:
9
12
2020
pubmed:
10
12
2020
medline:
10
12
2020
Statut:
epublish
Résumé
Phytic acid (IP6), a naturally occurring agent, has been previously reported as a potential alternative to ethylenediaminetetraacetic acid (EDTA). However, its effect on adhesion to sodium hypochlorite (NaOCl)-treated dentin and its interactions with NaOCl have not been previously reported. Thus, in this study, the effects of IP6 on resin adhesion to NaOCl-treated dentin and the failure mode were investigated and the interactions between the used agents were analyzed. Micro-tensile bond strength (µTBS) testing was performed until failure on dentin treated with either distilled water (control), 5% NaOCl, or 5% NaOCl followed with chelators: 17% EDTA for 1 minute or 1% IP6 for 30 seconds or 1 minute. The failed specimens were assessed under a scanning electron microscope. The reaction of NaOCl with EDTA or IP6 was analyzed in terms of temperature, pH, effervescence, and chlorine odor, and the effects of the resulting mixtures on the color of a stained paper were recorded. The µTBS values of the control and NaOCl with chelator groups were not significantly different, but were all significantly higher than that of the group treated with NaOCl only. In the failure analysis, a distinctive feature was the presence of resin tags in samples conditioned with IP6 after treatment with NaOCl. The reaction of 1% IP6 with 5% NaOCl was less aggressive than the reaction of the latter with 17% EDTA. IP6 reversed the adverse effects of NaOCl on resin-dentin adhesion without the chlorine-depleting effect of EDTA.
Identifiants
pubmed: 33294409
doi: 10.5395/rde.2020.45.e44
pii: 2020451101
pmc: PMC7691263
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e44Informations de copyright
Copyright © 2020. The Korean Academy of Conservative Dentistry.
Déclaration de conflit d'intérêts
Conflict of Interest: No potential conflict of interest relevant to this article was reported.
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