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

Abstract

Objective Caries‐detector dyes (CDDs) have proven useful in the identification and removal of carious dentin. However, residues of these cleaning agents may remain in the oral cavity. This study conducted spectrophotomectric analyses to evaluate the effectiveness of different cleaning agents in removing residual CDDs from the oral cavity. Material and Method Ninety freshly extracted human third‐molar teeth were used in the study. Tooth occlusal surfaces were ground to expose dentin. Specimens were randomly distributed into 3 groups according to CDD [Seek Caries Indicator (SCI), Caries Detector (CD), Caries Marker (CM)], and each group was further divided into 3 sub‐groups according to cleaning solution [distilled water (DW), 3% NaOCl, and 3% H2O2)]. CDDs were applied to dentin surfaces according to the manufacturer's instructions and then rinsed with a cleansing solution. The effectiveness of cleaning solutions in removing CDD residues was determined according to color change by comparing spectrophotometric measurements of tooth color before CDD application and after cleaning. Data were analyzed using two‐way analysis of variance (ANOVA) and Tukey's HSD test (α = 0.05). Result For all CDDs groups, the smallest color differences were observed in the 3% NaOCl sub‐groups (P < .05), and the largest in the distilled water sub‐groups (P > .05). When compared to the other CDD groups, the SCI group yielded the greatest color differences for all cleaning‐agent sub‐groups. Conclusion Cleaning solutions such as 3% NaOCl or 3% H2O2 can be used to remove residual CDD from dentin surfaces. Clinical Significance This study compared the effectiveness of three different cleaning agents in caries removal process.

Complimentary Staining of Caries Detector Dyes in Primary Teeth with or without the Application of a Dentine Bonding Agent

“…In their report, Singh et al found that sound and carious surfaces exhibited less bond strength with the application of caries detection dyes [37]. The study conducted by Emine et al using different cleaning solutions like distilled water, 3% sodium hypochlorite and 3% hydrogen peroxide for removing the residues of caries detector dyes revealed that sodium hypochlorite was more effective compared to the other agents, and the results were similar to those of the current study [39].…”

“…In a sample of 45 teeth (groups A, B, and C) all the teeth stained by the caries indicator dyes were stored in a glass container with distilled water for 10 min and later cleaned and dried with a cotton gauge. The leftover stained teeth were placed in 3.25% sodium hypochlorite for another 10 min and then cleaned with distilled water [39]. The ability of distilled water and sodium hypochlorite in removing caries indicator dyes from the tooth surface of all the groups were counted using the same index (modified extrinsic stain index), and data were tabulated.…”