Mensura o da tens o superficial de diferentes substancias utilizadas na terapia endod ntica

This research purpose measure the surface tension s substances used in endodontic therapy by means of creeping. The authors used a tube glass capillary with inside diameter 0,5 millimeter and length 20 centimeter. The tube propitiate the liquid s ascension. Liquids were aspirated and after stabilization into the tube glass capillary was measured the capilar s liquid column. The surface tension s result were: sodium hypochlorite 1% (60,7 dynes/c), tricresol formalin (27,2 dynes/c), PMCC (25,5 dynes/c). Besides the authors testify the hypothesis the surface tension s reduction of EDTA solutions when increased cleanser s crescent doses. The findings were: EDTA 17%+0,1% tergentol (45,60 dynes/c); EDTA 17%+0,5% tergentol (45,69 dynes/ c); EDTA 17%+1% tergentol (28,34 dynes/c); EDTA 17%+5% tergentol (24,58% dynes/c) e EDTA 17%+10% tergentol (17,68 dynes/c).