A novel NANO-calcium carbonate-polyurethane-based root canal obturation material : synthesis and evaluation of some physical properties

Abstract EN

Objectives: The purpose of this study was to prepare a new root canal obturating material named Nano-Calcium Carbonate-Polyurethane and evaluate three of its physical properties which are solubility, water sorption and radiopacity.

Methods: Poly Carbonate, 1,6-Hexanmethylene Diisocyanate, NCO 49.79%, and 1,4-butanediol were mixed to form Polycarbonate based thermoplastic polyurethane.

Additives material like Nano calcium carbonate powder, zinc oxide, calcium hydroxide and barium sulfate with different ratios blend together with the polycarbonate based thermoplastic polyurethane to form the final obturating material.

Solubility water sorption and radiopacity tests have been done to evaluate some physical properties of this material.

Result and conclusion: The Nano-Calcium Carbonate-Polyurethane is a promising root canal filling material and their solubility percent, water sorption and radiopacity are consistent with ISO standards.