Decalcifying effects of antimicrobial irrigating solutions on root canal dentin

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Abstract

Objective: The aim of this study was to determine the decalcifying efficacy of 7% maleic acid (MA), 2% chlorhexidine (CHX), and combinations of 7% MA + 0.2% cetrimide (CTR) and 2% CHX + 0.2% CTR, in four time periods. Study Design: Four specimens per tooth were obtained from a 2-mm thick slice of the cervical third of the root of ten human incisors. At 1, 2, 3 and 5 minutes of immersion, the concentrations of Ca2+ were measured by atomic absorption spectrophotometry. The results were analyzed using the Mann-Whitney U-test. Results: Statistically significant differences were seen for the extracted calcium in all time periods. The amount of calcium extracted by 7% MA was the highest at all four immersion times, followed by 7% MA + 0.2% CTR. Two percent CHX and its combination with 0.2% CTR extracted virtually no calcium. Conclusions: The decalcifying capacity of 7% MA and 2% CHX diminished when combined with 0.2% CTR. © Medicina Oral S. L. C.I.F. B 96689336 - pISSN 1698-4447 - eISSN: 1698-6946.

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Ferrer-Luque, C. M., Perez-Heredia, M., Baca, P., Arias-Moliz, M. T., & González-Rodríguez, M. P. (2013). Decalcifying effects of antimicrobial irrigating solutions on root canal dentin. Medicina Oral, Patologia Oral y Cirugia Bucal, 18(1). https://doi.org/10.4317/medoral.18207

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