Effect of Dentin Disinfection with 2% Chlorhexidine Gluconate and 0.3% Iodine on Dentin Bond Strength: An in vitro Study.

Nelamakanahalli K Suma

doi:10.5005/jp-journals-10005-1440

Abstract

Objective Cavity preparation is a surgical procedure that attempts to remove all infected dentin.1 Bacteria left beneath the filling material is greatest threat to the pulp. To reduce the potential for residual caries development and sensitivity, an antibacterial solution with the ability to disinfect the prepared tooth surface would be of help.2 So this study was conducted to evaluate and compare the effect of dentin disinfection with 2% chlorhexidine gluconate (Consepsis) and 0.3% iodine (Ora5) on shear bond strength (SBS) of self-etch adhesives to dentin.Materials and methods Buccal surfaces of 36 caries-free permanent third molars were ground to expose dentin. All specimens were mounted on acrylic block, divided randomly into three groups, namely group I (control), group II (Con-sepsis), and group III (Ora5). After the application of cavity disinfectant and bonding procedures as per manufacturer’s instructions, composite cylinders were built. Then SBS was measured using universal testing machine.Results Statistical analysis of the measurements were made using one-way analysis of variance (ANOVA), which showed that when cavity disinfectants (Consepsis and Ora5) were used there was significant reduction in SBS of composite to dentin when compared with that of control group.Interpretation and conclusion The results indicate that the use of commercially available cavity disinfectants, Consepsis containing 2% chlorhexidine gluconate and Ora5 containing 0.3% iodine and 0.15% potassium iodide with self-etch adhesive (Adper Prompt), would significantly lower SBS of composite to dentin.How to cite this article Suma NK, Shashibhushan KK, Reddy VVS. Effect of Dentin Disinfection with 2% Chlorhexidine Gluconate and 0.3% Iodine on Dentin Bond Strength: An in vitro Study. Int J Clin Pediatr Dent 2017;10(3):223-228.

Highlights

Cavity preparation is a surgical procedure that attempts to remove all infected dentin prior to placing a restorative material.[1]
All specimens were mounted on acrylic block, divided randomly into three groups, namely group I, group II (Consepsis), and group III (Ora5)
Statistical analysis of the measurements were made using one-way analysis of variance (ANOVA), which showed that when cavity disinfectants (Consepsis and Ora5) were used there was significant reduction in shear bond strength (SBS) of composite to dentin when compared with that of control group

Summary

Introduction

Cavity preparation is a surgical procedure that attempts to remove all infected dentin prior to placing a restorative material.[1] Bacteria left beneath the filling material is the greatest threat to the pulp. Bacterial activity may result in increased pulp sensitivity, pulpal inflammation, and secondary caries.[2] One of the commonest problem across all restorative material is microleakage.[3] Microleakage has been demonstrated as a factor in hypersensitivity and secondary caries.[4] To date, no restorative material has been consistently shown to seal and adhere to dentin. In an effort to remove bacteria laden dentin, various dyes have been tested.[5] A solution of 0.5% basic fuchsin in propylene glycol was used as a caries disclosing dye.[6] Anderson et al indicated that the cariously affected dentin contained 1,300 times more colony forming units per milligram (CFU/mg) than the dentin that did not take up the dye. The dentin containing

Methods

Discussion

Conclusion