Cai HongXin, Lee Min-Yong, Jiang Heng Bo, Kwon Jae-Sung
Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Department of Stomatological Technology, School of Stomatology, Shandong First Medical University, Jinan, 250117, Shandong, China.
Sci Rep. 2024 Sep 29;14(1):22551. doi: 10.1038/s41598-024-73109-0.
This study aimed to investigate the impact of various cleaning solutions on the geometry, roughness, gloss, hardness, and flexural strength of 3D-printed zirconia. Cleaning solutions, including isopropyl alcohol (IPA, 99.9%), ethyl alcohol (EtOH, 99.9%), and tripropylene glycol monomethyl ether (TPM, ≥ 97.5%), were diluted to a concentration of 70% and categorized into six groups: IPA99, EtOH99, TPM97, IPA70, EtOH70, and TPM70. Zirconia discs, printed via digital light processing, were sintered after cleaning. The geometry, roughness, gloss, hardness, and flexural strength were analyzed. Statistical analysis was performed using one-way ANOVA with Tukey's post hoc test (p < 0.05). The thickness of TPM70 was the highest. The diameter of TPM70 was significantly larger than that of EtOH99 and IPA70 (p < 0.05). The weight of the TPM groups was significantly higher than that of IPA70 (p < 0.05). The roughness Ra of TPM70 was significantly greater than that of IPA99, EtOH99, and EtOH70 (p < 0.05). The differences in surface gloss, hardness, and flexural strength among the different groups were not statistically significant (p > 0.05). Different cleaning solutions did not affect the surface gloss, hardness, and flexural strength of 3D-printed zirconia. High and low concentrations of the same cleaning solution did not affect the surface gloss, hardness, and flexural strength. IPA70, TPM97, and EtOH can be considered viable post-printing cleaning alternatives to the traditional gold standard, IPA99.
本研究旨在探讨各种清洁溶液对3D打印氧化锆的几何形状、粗糙度、光泽度、硬度和抗弯强度的影响。清洁溶液包括异丙醇（IPA，99.9%）、乙醇（EtOH，99.9%）和三丙二醇单甲醚（TPM，≥97.5%），将其稀释至浓度为70%，并分为六组：IPA99、EtOH99、TPM97、IPA70、EtOH70和TPM70。通过数字光处理打印的氧化锆圆盘在清洁后进行烧结。分析其几何形状、粗糙度、光泽度、硬度和抗弯强度。采用单因素方差分析和Tukey事后检验进行统计分析（p < 0.05）。TPM70的厚度最高。TPM70的直径显著大于EtOH99和IPA70（p < 0.05）。TPM组的重量显著高于IPA70（p < 0.05）。TPM70的粗糙度Ra显著大于IPA99、EtOH99和EtOH70（p < 0.05）。不同组之间的表面光泽度、硬度和抗弯强度差异无统计学意义（p > 0.05）。不同的清洁溶液不会影响3D打印氧化锆的表面光泽度、硬度和抗弯强度。相同清洁溶液的高浓度和低浓度均不会影响表面光泽度、硬度和抗弯强度。IPA70、TPM97和EtOH可被视为传统金标准IPA99可行的打印后清洁替代品。
