Abstract:
The objective of this study is to evaluate the properties of visible light-curing provisional experimental composites incorporated with bioactive glasses and Zinc oxide. Provisional composites incorporated with various additive fillers (15 wt% 45S5, 15 wt% S53P4, 1 wt% ZnO and SiO2) were studied by comparing to Systemp onlay as a control. The composites were prepared to study the mechanical properties (flexural strength, flexural modulus, and fracture toughness), physical properties (water sorption, water solubility), depth of cure, and antibacterial property. The flexural strength, flexural modulus, and fracture toughness were higher for 0BG and ZnO composite compared to the bioactive composites. The lowest flexural strength and flexural modulus were found for Systemp onlay. The 45S5 composite showed the largest water sorption, followed by the S53P4 composite, while the water sorption of Systemp onlay, 0BG and ZnO composite were the same at low value. The largest water solubility was Systemp onlay, while the lowest was S53P4 composite. The deepest depth of cure was Systemp onlay, followed by 0BG, and the bioactive glass composites and the lowest depth of cure were found in the experimental ZnO composite. Finally, all materials did not show antibacterial properties against 10(5) and 10(7) CFU/ml of Streptococcus mutans. The 15 wt% bioactive glasses composite decreased the mechanical properties, physical properties, and depth of cure, while the 1 wt% ZnO experimental composite was significantly decreased the depth of cure. However, the experimental composites were extremely higher mechanical and physical properties than Systemp onlay. In addition, all experimental composites and Systemp onlay did not show the antibacterial properties.