![]() ![]() ![]() The agitation of the boiling solution appeared to facilitate the decomposition.Ĭhemical reaction rates accelerate with increases in temperature, pressure, and concentration. ![]() On average, boiling disintegrated the samples 210 times faster (2 minutes versus 420 minutes) than immersion in room temperature sodium hypochlorite. Sections (0.6 g) of John Morrell Franks (John Morrell) were used as the simulated dental pulp tissue. Samples of simulated pulpal tissue were immersed in 300 mL of 6% sodium hypochlorite (Ultra Clorox Regular Bleach, Clorox) until fully dissolved. Their tests evaluated both fresh and necrotic rat connective tissues, and determined that necrotic tissue required significantly more time for dissolution.īecause no studies have reported the efficacy of sodium hypochlorite at temperatures above 60☌, the author performed a simple bench test to evaluate the solvent ability of sodium hypochlorite at high temperatures. They found that both the higher concentration and the higher temperature sodium hypochlorite solutions significantly reduced tissue dissolution times. 3,4 Abou-Ross and Oglesb圓 compared tissue dissolution times of rat connective tissues with 2.6% and 5.25% sodium hypochlorite solutions at both 23☌ and 60☌. Heating sodium hypochlorite enhances its tissue solubility and debridement proper-ties. 1 Cunningham and Joseph 2 found that sterility was achieved in significantly less time with body temperature (37Â☌) sodium hypochlorite solution than with a room temperature (22☌) solution. 1-3 Sedgely, et al demonstrated the advantages of adequate irrigant volumes delivered to within the apical 1-mm of root canal preparations. Techniques have been reported to enhance the efficacy of sodium hypochlorite irrigant, including circulating greater volumes of irri-gant and preheating the irrigant. This article introduces a simple technique to increase the debridement efficacy of sodium hypochlorite by intracanal heating of the solution with a heat source. With antimicrobial and proteolytic properties, sodium hypochlorite is an effective and efficient endodontic irrigant. Thorough chemo-mechanical debridement of root canal systems is critical for successful endodontic treatment. ![]()
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