This study aimed to prepare experimental calcium silicate repair cements (ERCs) incorporating zirconium (Ca3ZrSi2O9; CZS) or strontium substitution (Sr5(PO4)2SiO4; SPS), and to compare their physicochemical properties with white MTA-Angelus (WMTA), grey MTA-Angelus (GMTA), and Biodentine (BD). After synthesizing the CZS and SPS phases, powder–liquid cements were formulated. The setting time and radiopacity were assessed according to ISO 6876/12 and ASTM C266, the volumetric solubility by micro-CT, the pH by a pH meter, and the calcium/strontium ion release by FAAS/ICP-OES. Data were analyzed using ANOVA and Tukey’s tests (5%). The initial setting time was 11 min for SPS and 6 min for CZS (p 0.05). Under these conditions, the experimental ERCs demonstrated adequate physicochemical performance comparable with commercial materials.
Dias et al. (Wed,) studied this question.