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Evaluates a new root canal filling material's solubility, water sorption, and radiopacity, suggesting its potential for dental applications.
The aim of this study was to prepare a new root canal obturation material named “nano-calcium carbonate-polyurethane” and to evaluate three of its physical properties which are solubility, water sorption and radiopacity.Polycarbonate 1, 6-hexamethylene diisocyanate, NCO 49.79%, and 1, 4-butanediol were mixed together to form polycarbonate-based thermoplastic polyurethane (TPU). Additive materials like nano-calcium carbonate powder, zinc oxide, calcium hydroxide and barium sulfate with different ratios were blend together with the polycarbonate-based thermoplastic polyurethane to form the final obturation material.The nano-calcium carbonate-polyurethane was found to be a promising root canal filling material; the percentages of solubility, water sorption and radiopacity were consistent with ISO standards.
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BAHAR et al. (2013) studied this question.
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