Effect of an Alcohol-Based Caries Detector on the Surface Tension of Sodium Hypochlorite Preparations

Abstract

The purpose of this study was to evaluate the effect of an alcohol-based caries detector (Kurakay) on the surface tension of a conventional sodium hypochlorite (NaOCl) preparation, and a product containing a surface-active agent (Chlor-XTRA). The surface tensions of the following solutions were tested: NaOCl, a mixture of NaOCl and Kurakay 9:1 w/w, Chlor-XTRA, a mixture of Chlor-XTRA and Kurakay 9:1 w/w. Ten measurements per test solution were made at 20 °C, using an optical method called the "Pendant drop method", with a commercially available apparatus. The addition of Kurakay reduced the surface tension for NaOCl (p<0.05) whilst no significant difference was detected for Chlor-XTRA (p>0.05). Statistically significant differences between the NaOCl and Chlor-XTRA groups were found (p<0.05). The addition of an alcohol-based caries detector resulted in a reduction of the original surface tension values for NaOCl only. Taking into account the fact that mixtures of NaOCl and Kurakay have been used to assess the penetration of root canal irrigants in vitro, the related changes in surface tension are a possible source of bias.

Effectiveness of Different Cleaning Solutions in Removing Residual Caries‐Detector Dyes

“…The 3% H 2 O 2 used in this study has been recommended by the manufacturer as a cleaning agent; however, it was less successful in cleaning residual CDDs when compared to 3% NaOCl. This may be explained by the fact that CDDs contain a mixture of dyes and alcohol derivatives, which is incompatible with oxidizing agents like 3% H 2 O 2 …”

“…This may be explained by the fact that CDDs contain a mixture of dyes and alcohol derivatives, which is incompatible with oxidizing agents like 3% H 2 O 2 . 17 Distilled water is a commonly available material used to clean debris and discolorants. It is also commonly used as a negative control agent in laboratory studies because it does not modify the organic or inorganic contents of dental tissue; hence, it is not surprising that this study found DW to be unsuccessful in removing residual CDD from dentin.…”

The importance of surface tension in endodontic irrigation: A review study

“…In recent years, silver nanoparticles (AgNPs) have gained attention in dentistry as root canal irrigants or medicaments. [14][15][16][17] In addition to being highly effective against bacteria, these particles are compatible with human cells [18][19][20] Thus, it is vital to investigate the properties of these newly introduced agents in comparison to typical endodontic irrigants. 21 Identifying factors that contribute to the etiology, management methods, and outcomes in endodontic treatment with dental irrigants surface tension was the purpose of this study.…”