用于牙科复合树脂的基于氧化锌-二氧化硅体系的玻璃陶瓷填料：对机械性能的影响

Glass-Ceramic Fillers Based on Zinc Oxide-Silica Systems for Dental Composite Resins: Effect on Mechanical Properties.

作者信息

Torkian Peyman, Mortazavi Najafabadi SayedMohsen, Ghashang Majid, Grzelczyk Dariusz

机构信息

Department of Manufacturing, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol 47148-71167, Iran.

Department of Automation, Biomechanics and Mechatronics, Lodz University of Technology, 1/15 Stefanowski Street, 90-537 Lodz, Poland.

出版信息

Materials (Basel). 2023 Sep 19;16(18):6268. doi: 10.3390/ma16186268.

The potential of glass ceramics as applicable materials in various fields including fillers for dental restorations is our guide to present a new procedure for improvements of the mechanical properties of dental composites. This work aims to use ZnSiO and SiO-ZnO nano-materials as fillers to improve the mechanical properties of Bis-GMA/TEGDMA mixed dental resins. ZnSiO and SiO-ZnO samples were prepared and characterized by using XRD, FE-SEM, EDX, and FT-IR techniques. The XRD pattern of the SiO-ZnO sample shows that ZnO crystallized in a hexagonal phase, while the SiO phase was amorphous. Similarly, the ZnSiO sample crystallized in a rhombohedral crystal system. The prepared samples were used as fillers for the improvement of the mechanical properties of Bis-GMA/TEGDMA mixed dental resins. Five samples of dental composites composed of Bis-GMA/TEGDMA mixed resins were filled with 2, 5, 8, 10, and 15 wt% of SiO-ZnO, and similarly, five samples were filled with ZnSiO samples (2, 5, 8, 10, and 15 wt%). All of the 10 samples (-) were characterized by using different techniques including FT-IR, FE-SEM, EDX, and TGA analyses. According to the TGA analysis, all samples were thermally stable up to 200 °C, and the thermal stability increased with the filler percent. Next, the mechanical properties of the samples including the flexural strength (FS), flexural modulus (FM), diameter tensile strength (DTS), and compressive strength (CS) were investigated. The obtained results revealed that the samples filled with 8 wt% of SiO-ZnO and 10 wt% of ZnSiO had higher FS values of 123.4 and 136.6 MPa, respectively. Moreover, 8 wt% of both fillers displayed higher values of the FM, DTS, and CS parameters. These values were 8.6 GPa, 34.2 MPa, and 183.8 MPa for SiO-ZnO and 11.3 GPa, 41.2 MPa, and 190.5 MPa for the ZnSiO filler. Inexpensive silica-based materials enhance polymeric mechanics. Silica-metal oxide nanocomposites improve dental composite properties effectively.

玻璃陶瓷作为包括牙科修复填料在内的各种领域适用材料的潜力，是我们提出一种改善牙科复合材料机械性能新方法的指导依据。这项工作旨在使用硅酸锌（ZnSiO）和二氧化硅 - 氧化锌（SiO - ZnO）纳米材料作为填料，以改善双酚A - 甲基丙烯酸缩水甘油酯（Bis - GMA）/三乙二醇二甲基丙烯酸酯（TEGDMA）混合牙科树脂的机械性能。制备了硅酸锌和二氧化硅 - 氧化锌样品，并使用X射线衍射（XRD）、场发射扫描电子显微镜（FE - SEM）、能谱分析（EDX）和傅里叶变换红外光谱（FT - IR）技术对其进行表征。二氧化硅 - 氧化锌样品的XRD图谱表明，氧化锌结晶为六方相，而二氧化硅相为非晶态。同样，硅酸锌样品结晶为菱面体晶体系统。将制备的样品用作填料，以改善Bis - GMA/TEGDMA混合牙科树脂的机械性能。由Bis - GMA/TEGDMA混合树脂组成的五个牙科复合材料样品分别填充了2 wt%、5 wt%、8 wt%、10 wt%和15 wt%的二氧化硅 - 氧化锌，同样，五个样品填充了硅酸锌样品（2 wt%、5 wt%、8 wt%、10 wt%和15 wt%）。所有这10个样品均通过使用包括FT - IR、FE - SEM、EDX和热重分析（TGA）等不同技术进行表征。根据TGA分析，所有样品在高达200°C时均具有热稳定性，并且热稳定性随填料百分比的增加而提高。接下来，研究了样品的机械性能，包括弯曲强度（FS）、弯曲模量（FM）、直径拉伸强度（DTS）和抗压强度（CS）。所得结果表明，填充8 wt%二氧化硅 - 氧化锌和10 wt%硅酸锌的样品分别具有较高的FS值，分别为123.4 MPa和136.6 MPa。此外，两种填料的8 wt%均显示出较高的FM、DTS和CS参数值。对于二氧化硅 - 氧化锌，这些值分别为8.6 GPa、34.2 MPa和183.8 MPa，对于硅酸锌填料，这些值分别为11.3 GPa、41.2 MPa和190.5 MPa。廉价的二氧化硅基材料可增强聚合物力学性能。二氧化硅 - 金属氧化物纳米复合材料可有效改善牙科复合材料性能。