Effect of phytic acid on the setting times and tensile strengths of calcium silicate-based cements

: Ozgur Uyanik, Emre Nagas, Selen Kucukkaya Eren, Zafer C. Cehreli, Pekka K. Vallittu, Lippo V.J. Lassila

Publisher: Blackwell Munksgaard

: 2019

: Australian Endodontic Journal

: Australian endodontic journal : the journal of the Australian Society of Endodontology Inc

: Aust Endod J

: 45

: 2

: 241

: 245

: 5

: 1329-1947

: 1747-4477

DOI: https://doi.org/10.1111/aej.12314

This study aimed to evaluate and compare the effect of 1% phytic acid as a mixing medium on the setting times and diametral tensile strengths of different calcium silicate‐based cements. Specimens for four experimental groups (n = 20/each) were fabricated by mixing ProRoot MTA^® (Dentsply) and Biodentine^® (Septodont) powders with their original liquids or with 1% phytic acid. Half of the samples in each group were immediately subjected to setting time tests, whereas the remaining half was subjected to the diametral tensile strength test after 3 weeks. When mixed with their original liquids, the setting time of MTA was significantly longer than that of Biodentine^® (P < 0.05). When mixed with phytic acid, the initial and final setting times of both test materials significantly decreased (P < 0.05). The diametral tensile strength of Biodentine^® was significantly greater than that of MTA (P < 0.05). However, phytic acid had no effect on this outcome (P > 0.05).