Eldeniz, Ayce ÜnverdiErdemir, AliKurtoğlu, FiruzeEsener, Timur2020-06-252020-06-252007closedAccess1079-21041528-395Xhttps://doi.org10.1016/j.tripleo.2006.10.018https://hdl.handle.net/20.500.12587/3960Erdemir, Ali/0000-0003-1140-3887Objective. This is an in vitro assessment of pH level and calcium ion release exhibited by 3 calcium hydroxide-based root canal sealers-Sealapex, Apexit, and Acroseal. Study design. The materials were prepared according to the manufacturers' instructions and placed in 1 cm long and 4 mm diameter tubes. The tubes were then immersed in a glass flask containing 10 mL bidistilled water (n = 15), which was sealed and stored at 37 degrees C before the materials had set. The control group contained bidistilled water with empty tubes (n = 12). At predetermined time intervals (24 h, 96 h, and 7, 15, and 28 days) the pH of the bidistilled water was tested with a pH meter and for released calcium by using spectrophotometry. The data were statistically analyzed using 1-way analysis of variance for the comparison of the materials at each time point. If the difference was significant, individual comparisons were performed by Tukey multiple comparisons test (alpha = .05). Results. Sealapex produced higher pH and released significantly higher calcium amounts than the other 2 sealers at all periods (P < .05). Apexit showed higher calcium release than Acroseal at the end of 15 days (P < .05). There was no significant difference in the pH between Apexit and Acroseal (P > .05). Conclusion. The new Acroseal sealer presented the least calcium ion release and pH than Sealapex and less calcium ion release than Apexit sealer.eninfo:eu-repo/semantics/closedAccessArticle1033E85E9110.1016/j.tripleo.2006.10.0182-s2.0-3384713266117241799N/AWOS:000245441700045Q3