Effect of gutta-percha solvents on surface microhardness of IRM fillings.

Eighty identical samples of IRM were prepared and embedded in acrylic resin. The samples were polished, rinsed, and divided into experimental groups and controls, 10 specimens each. Each experimental group was treated for 1 or 5 min with one of the following gutta-percha solvents: chloroform, xylene, or halothane. Sterile saline was used as a control… CONTINUE READING