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Influence of curing protocols on water sorption and solubility of a self-adhesive resin-cement


Resin cements. Solubility. Polymerization.

How to Cite

Dziedzic DSM, Prohny JPS, Picharski GL, Furuse AY. Influence of curing protocols on water sorption and solubility of a self-adhesive resin-cement. Braz. J. Oral Sci. [Internet]. 2017 Apr. 20 [cited 2023 Dec. 10];15(2):144-50. Available from:


Aim: To evaluate the effect of different activation protocols on the polymerization of a self-adhesive dual cured resin-based cement. Methods: Thirty disc-shaped specimens were prepared with the resin cement RelyX U200 (3M ESPE) and divided according to three protocols: immediate light-activation for 40 s, delayed light-activation (10 min after manipulation, for 40 s) or self-curing without light-activation. The specimens were desiccated, kept in water at 37 °C for 7 days and desiccated again to calculate water sorption, solubility and mass variation. Data were analyzed by Shapiro-Wilk Test and Wilcoxon tests (α=0.05). Images after the specimens’ final desiccation were also made. Results: The Wilcoxon test revealed a significant difference for sorption and mass variation (p<0.05) and the highest value was observed in self-curing or chemical activation group (CA), followed by delayed light-activation (DL) and immediate light-activation (IL). Besides the water sorption parameters, there were also microvoids on the discs from the delayed and no light-activation groups. Conclusions: The light-activation immediately after manipulation is recommended for the evaluated resin cement.


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