DINIZ, Jiordanne Araújo et al. Effect on hydroeletrolitc reposition microhardness of composite resins. Odontol. Clín.-Cient. (Online) []. 2015, 14, 4, pp. 825-830. ISSN 1677-3888.

Aim: To investigate the effect of electrolyte replacers on the microhardness of composite resins. Materials and Methods: Using an in vitro study, sixteen specimens were fabricated composite resin brands Rok ®, Herculite ® Classic, Filtek TM P-60 ® and ® EstelitΣ, color B2, with dimensions of 5 mm in diameter and 2 mm in height. The specimens were obtained in increments of 2 mm and final curing for 20s. The specimens were exposed to the action of three different hydroelectrolyte respositores, Marathon ® Sport, Sport Taeq ® and Gatorade ® (grape flavor), artificial saliva and within three weeks. Previamnete we measured the endogenous pH of each beverage by pH - meter type. Analysis was performed Vickers microhardness of resins each week exposure. Data were analyzed using descriptive and inferential statistics using the Kruskal-Wallis test. Results: The commercial maracas composites showed statistically significant difference in hardness values after 1, 2 or 3 weeks. Conclusion: The electrolyte replacers had an influence on the microhardness of resins.

: Composite Resin; Hydroelectrolyte Respositores; Microhardness..