Effect of different concentrations of chlorhexidine on bond strength of primary dentin

Manfro, A. R. G., Reis, A., Loguercio, A. D., Imparato, J. C. P. and Raggio, D. P. ORCID: https://orcid.org/0000-0002-0048-2068 2012. Effect of different concentrations of chlorhexidine on bond strength of primary dentin. Pediatric Dentistry 34 (2) , e11-5.

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Abstract

Purpose: The purpose of this study was to assess the effect of different concentrations of chlorhexidine digluconate on the bond strength to primary tooth dentin immediately and after 12 months. Methods: Twenty-one sound primary molars were assigned to 3 groups (N=7). The bonding procedure was performed in control group (A) using 37% phosphoric acid gel (15 seconds), then washed (15 seconds), dried with air (30 seconds), and rehydrated with water. Groups B and C had the rewetting procedure performed, respectively, with 0.5% and 2% chlorhexidine for 30 seconds. The tensile bond strength was tested immediately (IM) or after storage in artificial saliva for 12 months (12M). Data were evaluated by 2-way repeated measures analysis of variance and Tukey's post-hoc test. Results: There was no significant reduction in bond strength values when chlorhexidine was used at concentrations of 0.5% (IM=49.3/2.6 and 12M=32.3/7.9) and 2% (IM=44.0/8.7 and 12M=34.6/5.1). Conversely, a significantreduction in bond strength was observed in the control group (IM=50.8/12.8 and 12M=20.4/3.7). Conclusion: The study validates the concept that chlorhexidinesolution, at different concentrations, may prevent the degradation of the adhesive interface in primary teeth.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Dentistry
Publisher:	American Academy of Pediatric Dentistry
ISSN:	0164-1263
Last Modified:	10 Nov 2022 10:59
URI:	https://orca.cardiff.ac.uk/id/eprint/148864

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