Barbur Ioan, Opris Horia, Colosi Horatiu Alexandru, Baciut Mihaela, Opris Daiana, Cuc Stanca, Petean Ioan, Moldovan Marioara, Dinu Cristian Mihail, Baciut Grigore
Department of Maxillofacial Surgery and Implantology, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.
Department of Medical Education, Division of Medical Informatics and Biostatistics, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.
Biomedicines. 2023 Jul 12;11(7):1965. doi: 10.3390/biomedicines11071965.
The goal of the current study was to determine the mechanical proprieties of polymethylmethacrylate (PMMA) and the improved compound, the graphene-based PMMA, with Zn and Ag and to compare the results. Scanning electron microscopy analysis of the samples before and after the mechanical test was conducted. The compression behavior, flexural properties, tensile strength, and shape of the samples were all investigated and compared between the variants of PMMA. Commercially available polymethylmethacrylate was used (Orthocryl-Dentaurum, Ispringen, Germany) with the salt and pepper technique according to the manufacturer's instructions to produce 20 samples for each mechanical trial with standard cylinders (4 mm diameter × 8 mm length) for compression, parallelepipedal prisms for flexing (2 mm × 2 mm × 25 mm) and flat samples for traction. There was no statistical difference in the mechanical proprieties of the samples evaluated, although there were values that could suggest significance. The graphene-based PMMA demonstrated good mechanical proprieties, like the commercially available PMMA, and appears promising for future clinical use based on its multiple advantages.
本研究的目的是确定聚甲基丙烯酸甲酯（PMMA）以及改进后的化合物——含锌和银的石墨烯基PMMA的力学性能，并比较结果。对力学测试前后的样品进行了扫描电子显微镜分析。研究并比较了PMMA各变体之间样品的压缩行为、弯曲性能、拉伸强度和形状。使用市售的聚甲基丙烯酸甲酯（德国伊斯普林根的Orthocryl-Dentaurum），按照制造商的说明采用盐和胡椒技术，为每次力学试验制备20个样品，用于压缩的标准圆柱体（直径4 mm×长度8 mm）、用于弯曲的平行六面体棱柱（2 mm×2 mm×25 mm）以及用于拉伸的扁平样品。尽管有一些数值可能表明存在显著性差异，但所评估样品的力学性能并无统计学差异。石墨烯基PMMA表现出良好的力学性能，与市售PMMA类似，基于其多重优势，在未来临床应用中似乎很有前景。
