%0 Journal Article
%T Surface tension of calcium hydroxide associated with different substances
%A Estrela
%A Carlos
%A Estrela
%A Cyntia Rodrigues de Ara¨²jo
%A Guimar£¿es
%A Luiz Fernando
%A Silva
%A Reginaldo Santana
%A P¨¦cora
%A Jesus Djalma
%J Journal of Applied Oral Science
%D 2005
%I University of S?o Paulo
%R 10.1590/S1678-77572005000200011
%X the purpose of this study was to evaluate the surface tension of calcium hydroxide (ch) associated with different substances (deionized distilled water, camphorated paramonochlorophenol, 2% chlorhexidine digluconate, otosporin, 3% sodium lauryl ether sulphate; furacin, pmc furacin) using tensiometer. the action of the substances studied on the dentinal structure enhances the property of surface tension. this method consists in the application of force to separate a platinum ring immersed in the substances. thus, torsion was applied to the screw until the platinum ring separated during substances testing. considering the methodology applied, the following can be concluded: distilled water alone or associated with ch presented a high surface tension (70.00 and 68.40 dynes/cm); calcium hydroxide in association with anionic detergent showed low surface tension (31.60 dynes/cm); camphorated paramonochlorophenol plus ch presented low surface tension (37.50 dynes/cm); 2% chlorhexidine associated with calcium hydroxide showed high surface tension values (58.00 dynes/cm); otosporin plus calcium hydroxide showed low surface tension (35.40 dynes/cm); paramonochlorophenol furacin mixed with calcium hydroxide presented surface tension equal to 45.50 dynes/cm; sodium hypochlorite presented high surface tension (75.00 dynes/cm). antimicrobial agents more indicated in endodontics, i.e. ch, chlorhexidine and hypochlorite, presented the highest surface tension.
%K calcium hydroxide
%K root canal dressing
%K surface tension.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1678-77572005000200011&lng=en&nrm=iso&tlng=en