Calcium carbonate impact on mechanical and antibacterial properties of dental cement

Objectives: to evaluate the influence of Calcium carbonate (CaCO₃ ) on the mechanical and antibacterial properties of dental cement by testing three different CaCO₃ compositions. Methods: Tricalcium silicate (Ca₃SiO₅) nanoparticles are combined with zirconium dioxide (ZrO₂) powder, calcium chloride (CaCl₂), and CaCO₃ to produce dental cement. The research specimens were divided into three groups of CaCO₃ composition, which are 10%, 12.5%, and 15%. The samples were then tested for diametral tensile strength and the inhibitory ability of Enterococcus faecalis bacteria. Results: The highest compressive strength of the synthesized dental cement is obtained at 15% of specimens with 40.24 MPa values. The best inhibition zone diameter average was produced by 10% CaCO₃, which is 3.40 mm. Conclusion: Calcium carbonate significantly influenced dental cement's mechanical and antibacterial properties. The cement group with 15% CaCO₃ content had the highest mechanical properties, while the 10% CaCO₃ group had the best antibacterial properties.