Abstract
ABSTRACTBackground: Successful obturation in the primary teeth demands complete dryness of the root canal system.Aim: The purpose of this study was to determine the effect of 95% ethanol as the final irrigant before root canal obturation in primary teeth.Materials and methods: A total of 20 extracted primary mandibular canines were biomechanically prepared and pre-obturated volume of each tooth was assessed using spiral computed tomography (CT). The specimens were divided into two groups (n = 10): group 1, Metapex group; group 2, zinc oxide eugenol group. Each group was further divided randomly into two subgroups (n = 5): subgroup 1, canals were dried with 95% ethanol; subgroup 2, canals were blot dried with paper points with the last one appearing dry. All canals were obturated and the postobturated volume of each tooth was measured. The percentage of obturated volume (POV) was calculated using the formula: (postobturated volume/preobturated volume) × 100. The POV between the groups was statistically analyzed using Mann-Whitney test and Wilcoxon Signed rank test appropriately.Results: Root canals that were dried with ethanol showed better obturation than using paper points alone and the difference was statistically significant in both group 1 (p < 0.001) and group 2 (p < 0.002).Conclusion: Drying of the root canal system with 95% ethanol can result in better obturation in the primary teeth.How to cite this article: Thiruvenkadam G, Asokan S, John B, Geetha Priya PR. Effect of 95% Ethanol as a Final Irrigant before Root Canal Obturation in Primary Teeth: An in vitro Study. Int J Clin Pediatr Dent 2016;9(1):21-24.
Highlights
Preserving the integrity of primary dentition till time of exfoliation is the primary goal of pulp therapy inA biomechanically well-prepared root canal system along with a three-dimensional (3D) seal is the clinician’s path to success.[2]
Root canals that were dried with ethanol showed better obturation than using paper points alone and the difference was statistically significant in both group 1 (p < 0.001) and group 2 (p < 0.002)
Drying of the root canal system with 95% ethanol can result in better obturation in the primary teeth
Summary
Preserving the integrity of primary dentition till time of exfoliation is the primary goal of pulp therapy inA biomechanically well-prepared root canal system along with a three-dimensional (3D) seal is the clinician’s path to success.[2]. Various materials and methods like alcohols, paper points and Luer vacuum adapter have been used to achieve proper drying of the root canal system.[4] Alcohol has been suggested to remove the residual moisture in root canal.[5] Literature search showed many studies evaluating the role of alcohol in permanent teeth before sealer placement. Stevens et al[7] found that a final rinse with 95% ethyl alcohol increased sealer penetration and decreased leakage in permanent root canals. Paper points are still being used widely for drying the canals of primary teeth. No studies have evaluated the efficacy of alcohol in primary teeth as the final drying agent before obturation. Successful obturation in the primary teeth demands complete dryness of the root canal system
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