One year effect of chlorhexidine on bonding of fibre-reinforced composite root canal post to dentine

Journal of Dentistry
Ritva M LindbladL Tjäderhane

Abstract

Chlorhexidine preserves the long-term bonding between composite restorations and coronal dentine. Our aim was to evaluate the long-term effect of chlorhexidine on attachment of fibre-reinforced composite (FRC) root canal posts to root canals. We hypothesized that chlorhexidine would not negatively affect the bond strength in aged specimens. Root canals of 40 human extracted third molars were prepared for post cementation with each post systems' own burs. Four commercially available FRC posts (Glassix, D.T. Light-Post, Unicore, everStickPOST) were cemented with three different cements (Duo-link, PermaFlo DC, RelyX Unicem). After etching, except with self-adhesive RelyX Unicem, the post spaces were irrigated either with 2% chlorhexidine (Consepsis) or physiological saline for 60s. The roots (n=5 per group) were cut into 2mm thick dentine discs. The discs were stored in artificial saliva for one year. The bond strength was measured with the push-out method, and the failure mode was evaluated with a stereomicroscope. Unicore with PermaFlo DC and everStickPOST with RelyX Unicem demonstrated significantly higher bond strength values both with and without chlorhexidine. After one year of storage chlorhexidine application improved the ...Continue Reading

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Citations

Feb 28, 2013·International Endodontic Journal·L WangH M Honório
Jul 12, 2013·European Journal of Oral Sciences·Kerstin BitterGuido Sterzenbach
Feb 25, 2014·Journal of Dentistry·Manikandan EkambaramNigel Martyn King
Nov 11, 2014·Restorative Dentistry & Endodontics·Eduardo Diogo Gurgel-FilhoEmmanuel João Nogueira Leal da Silva
Feb 13, 2019·International Journal of Molecular Sciences·Wen ZhouLei Cheng
Oct 9, 2019·Journal of Dental Research, Dental Clinics, Dental Prospects·Bahman SerajRazieh Khanmohammadi
Dec 21, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·R M LindbladL Tjäderhane
May 18, 2021·The Japanese Dental Science Review·Francisca Jennifer Duarte de OliveiraDiana Ferreira Gadelha de Araújo

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