Paradowska-Stolarz Anna, Mikulewicz Marcin, Wieckiewicz Mieszko, Wezgowiec Joanna
Division of Dentofacial Anomalies, Department of Orthodontics and Dentofacial Orthopedics, Wrocław Medical University, Krakowska 26, 50-425 Wrocław, Poland.
Department of Experimental Dentistry, Wrocław Medical University, Krakowska 26, 50-425 Wrocław, Poland.
J Funct Biomater. 2023 May 2;14(5):254. doi: 10.3390/jfb14050254.
Currently, 3D print is becoming more common in all branches of medicine, including dentistry. Some novel resins, such as BioMed Amber (Formlabs), are used and incorporated to more advanced techniques. The aims of the study were to check whether or not polishing and/or artificial aging influences the properties of the 3D-printed resin. A total of 240 specimens of BioMed Resin were printed. Two shapes (rectangular and dumbbell) were prepared. Of each shape, 120 specimens were divided into four groups each (with no influence, after polishing only, after artificial aging only, and after both polishing and artificial aging). Artificial aging took place in water at the temperature of 37 °C for 90 days. For testing, the universal testing machine (Z10-X700, AML Instruments, Lincoln, UK) was used. The axial compression was performed with the speed of 1mm/min. The tensile modulus was measured with the constant speed of 5 mm/min. The highest resistance to compression and tensile test were observed in the specimens that were neither polished nor aged (0.88 ± 0.03 and 2.88 ± 0.26, respectively). The lowest resistance to compression was observed in the specimens that were not polished, but aged (0.70 ± 0.02). The lowest results of the tensile test were observed when specimens were both polished and aged (2.05 ± 0.28). Both polishing and artificial aging weakened the mechanical properties of the BioMed Amber resin. The compressive modulus changed much with or without polishing. The tensile modulus differed in specimens that were either polished or aged. The application of both did not change the properties when compared to the polished or aged probes only.
目前，3D打印在医学的各个分支中越来越普遍，包括牙科。一些新型树脂，如BioMed Amber（Formlabs），被用于并融入到更先进的技术中。本研究的目的是检查抛光和/或人工老化是否会影响3D打印树脂的性能。共打印了240个BioMed树脂样本。制备了两种形状（矩形和哑铃形）。每种形状的120个样本被分成四组（无影响、仅抛光后、仅人工老化后以及抛光和人工老化后）。人工老化在37℃的水中进行90天。测试使用万能试验机（Z10-X700，AML Instruments，英国林肯）。轴向压缩以1mm/min的速度进行。拉伸模量以5mm/min的恒定速度测量。在既未抛光也未老化的样本中观察到最高的抗压强度和拉伸试验强度（分别为0.88±0.03和2.88±0.26）。在未抛光但老化的样本中观察到最低的抗压强度（0.70±0.02）。当样本既抛光又老化时，拉伸试验结果最低（2.05±0.28）。抛光和人工老化都会削弱BioMed Amber树脂的机械性能。抗压模量在有无抛光的情况下变化很大。拉伸模量在抛光或老化的样本中有所不同。与仅抛光或老化的探针相比，两者同时应用并没有改变性能。
