Solubility of Epiphany endodontic sealer prepared with resinous solvent.

Odival Mathias-Junior, Aline Evangelista Souza-Gabriel, Carlos Eduardo Saraiva Miranda, Jesus Djalma Pécora, Yara Teresinha Correa Silva-Sousa, Manoel Damião Sousa-Neto

文献索引：J. Endod. 35(5) , 715-8, (2009)

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摘要

To evaluate in vitro the solubility of the Epiphany endodontic filling material Epiphany (Pentron Clinical Technologies, Wallingford, CT) prepared with its resinous solvent.The specimens were prepared in the following experimental conditions: (1) GI, epiphany without photoactivation; (2) GII, Epiphany prepared with resinous solvent without photoactivation; (3) GIII, Epiphany followed by photoactivation; and (4) GIV, Epiphany prepared with resinous solvent followed by photoactivation. Ten specimens of each group were obtained from Teflon molds with 80% reduction in volume of the specimen's dimensions based on American National Standard Institute/American Dental Association (ANSI/ADA) Specification No. 57. The samples were weighted and immersed in distilled water for 7 days. After this period, they were removed, dried, and weighed again. Solubility was calculated by using samples weight loss (%). The immersion liquid was evaluated through atomic absorption spectrometry.The sealers without photoactivation were statistically similar (p > 0.05) between themselves (GI = 6.93% and GII = 6.39%) and different from the uncured sealers, which were statistically different between themselves (p < 0.05) (GIII = 3.56% and GIV = 0.47%). Only the Epiphany sealer prepared with resinous solvent followed by photoactivation presented solubility values within ANSI/ADA requirements, liberating the following amounts of ions: 114.43 microg of Ca(2+)/mL, 2.4 microg of Mg(2+)/mL, 0.33 microg of Fe(2+)/mL, 0.11 microg of Zn(2+)/mL, 1.31 microg of Ni(2+)/mL, and 7.1 microg of Na(+)/mL.The association of resinous solvent to the Epiphany sealer followed by photoactivation resulted in a filling material with low solubility and expressive liberation of calcium ions.