MAHMUT ERÇİL ÖZGE PARLAR ÖZ YASEMİN ZER AYŞE BÜYÜKTAŞ MANAY
Aydın Dental Journal - 2024;10(1):23-34
Objectives: The aim of this study is to determine the ideal finishing process for CAD/CAM ceramic materials for use in dental restorations. For this determination, the surface roughness and bacterial adhesion counts of the ceramic surfaces after common finishing procedures are compared. Materials and Methods: A total of 120 samples with a thickness of 1 ± 0.05 mm were obtained from different CAD/CAM ceramic materials (IPS Empress CAD, IPS E-Max CAD, VITA Suprinity and CEREC blocs). The samples from each ceramic group were divided into three subgroups (n = 10) according to the finishing procedure (control, manual polished and glazed). The surface roughness values (Ra) were measured with an optical profilometer before and after each finishing procedure. An additional sample from each group was prepared for scanning, and surface roughness was visualized using scanning electron microscope analysis. A bacterial adhesion test was applied to determine the levels of Streptococcus mutans adhesion on each surface. Results: After the finishing process, the highest Ra value was observed in the LC glazed group, and a statistically significant difference was found between the LC glazed group and the manual polished groups (p < 0.05). The least amount of bacterial adhesion was observed in the LD glaze group. There were no statistically significant differences between the LD glaze group and the LC and ZL control groups (p > 0.05). Conclusion: The polished samples had smoother ceramic surfaces than the glazed samples. When evaluated in terms of bacterial adhesion, the effective polishing method for each ceramic type varied. Therefore, the polishing method should be chosen according to ceramic type.
