Influence of cleansing agents on enamel and dentin bond strength to a one-step adhesive system

Arlene Tachibana,Cynthia Soares De Azevedo,Adriana Bona Matos,Susana Morimoto

doi:10.14295/bds.2014.v17i1.948

Arlene Tachibana, Cynthia Soares De Azevedo + Show 2 more

Open Access

https://doi.org/10.14295/bds.2014.v17i1.948

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Abstract

Objective: The aim of this study was to detect the influence of application mode of cleansing agents, on enamel and dentin during the adhesion process of a one-step adhesive system.Materials and Methods: 24 human molars were sectioned into halves along the long axis for enamel and dentin tests. The cleansing agents used were hydrogen peroxide, anionic detergent, and antiseptic solution. In the experiment, these agents were applied with and without friction on enamel and dentin surfaces. A one-step adhesive system (Clearfil S3 Bond) was applied on dental surface and composite resin cylinders were built using Tygon tubing molds. After 24 h, ?SBS test (1 mm/ min) and fracture analysis were performed. Results: There was no statistically significant difference in bond strength values regarding the application mode of cleansing agents for enamel and dentin (p?0,05).Conclusions: Regarding bond strength, application mode of the cleansing agents used in this study presented the same behavior.

Highlights

Adhesion to dentin depends on the interaction of adhesive system and the dentin substrate
Sodium hypochlorite alters the mechanical properties of root dentin when used as an endodontic irrigant[3, 4], it is used in order to eliminate both organic and contaminated intracanal contents from dentinal walls by chemomechanical preparation
The second null hypothesis tested was accepted in our experiment, since bond strength of a one-step self-etching adhesive system was not influenced by the application mode of the cleansing agents tested

Summary

Introduction

Adhesion to dentin depends on the interaction of adhesive system and the dentin substrate. The different cleansing agents used were all handled (Fórmula & Ação, São Paulo, SP, Brazil) and divided into 3 groups: Group HP: 3% hydrogen peroxide (n = 8); Group AD: anionic detergent solution (0.125% sodium sulfate lauryldietyleneglycol ether) (n = 8), Group AS: antiseptic solution consisting of sodium hypochlorite (0.4% to 0.5%) and boric acid (4%) (Dakin’s solution) (n = 8). They were applied on enamel and dentin surfaces in two different ways as described below (two subgroups):.

Discussion

Findings

Conclusion