مطالعه آزمایشگاهی اثر اضافه نمودن نانوذرات اکسید سریم (CeO2) بر خاصیت ضدمیکروبی سمان گلاس یونومر مورد استفاده جهت اتصال بندهای ارتودنسی به دندان
کد: G-1195
نویسندگان: عبدالرسول رنگ رزی © ℗, خشایار محسن زاده, هومان شفاعی, کیارش قزوینی
زمان بندی: زمان بندی نشده!
دانلود: دانلود پوستر
خلاصه مقاله:
خلاصه مقاله
Objective: One of the most important and common problems with cemented orthodontic bands on teeth is the prevalence of white spot lesions and tooth decay. The purpose of this study is to investigate the antimicrobial effect of glass ionomer cement used for the cementation of orthodontic bands on teeth. Methods & Materials: First, cerium oxide nanoparticles were produced, and X-ray diffraction (XRD) and transmission electron microscopy (TEM) structural tests were performed on the obtained nanoparticles. Then, cerium oxide nanoparticles were added in proportions of 1%, 2%, and 4% to the glass ionomer cement used for the cementation of orthodontic bands on teeth. For each group with and without nanoparticles, disc-shaped samples were prepared for each ratio to determine their antibacterial properties using the direct contact test method. Results: The results of the direct contact test showed that a 1% weight ratio of cerium oxide nanoparticles is the minimum required to destroy all Streptococcus mutans bacteria. Conclusion: The significant antibacterial activity of glass ionomer containing 1% cerium oxide nanoparticles compared to other common metal nanoparticles, makes them a suitable option for further studies on enhancing the antibacterial properties of cement used for the cementation of orthodontic bands to teeth.
کلمات کلیدی
Cerium Oxide, Glass ionomer, Antibacterial, Orthodontics
