Lee Mintae, Kang You-Jung, Park Yeseul, Jeon Hyun Jeong, Kim Jee-Hwan
Department of Prosthodontics, Oral Science Research Center, Yonsei University College of Dentistry.
Plasmapp Co., Ltd.
Dent Mater J. 2025 Apr 1;44(2):211-219. doi: 10.4012/dmj.2024-128. Epub 2025 Feb 14.
This study investigated the effect of vacuum plasma treatment on the shear bond strength (SBS) of three-dimensional (3D)-printed resin and resin cement. Specimens were categorized based on airborne-particle abrasion (APA), plasma, and bonding agent treatments. Long-term adhesive stability was examined by comparing their SBSs before and after thermocycling. The group with the bonding agent applied after plasma treatment and before thermocycling exhibited the highest SBS of 23.9±2.2 MPa. No significant SBS difference was observed among the remaining groups, except for that subjected only to plasma treatment after thermocycling. The wettability of distilled water improved in the groups treated with plasma, whereas that of the bonding agent decreased in the group treated only with APA. Surface analysis revealed a roughened surface on the plasma-treated 3D-printed resin. Therefore, vacuum-plasma treatment before thermocycling can enhance the SBS of 3D-printed resin without compromising its properties.
本研究调查了真空等离子体处理对三维（3D）打印树脂与树脂水门汀剪切粘结强度（SBS）的影响。根据空气颗粒研磨（APA）、等离子体和粘结剂处理对样本进行分类。通过比较热循环前后的SBS来检查长期粘结稳定性。在等离子体处理后且热循环前施加粘结剂的组表现出最高的SBS，为23.9±2.2MPa。除了仅在热循环后进行等离子体处理的组外，其余组之间未观察到显著的SBS差异。经等离子体处理的组中蒸馏水的润湿性有所改善，而仅用APA处理的组中粘结剂的润湿性降低。表面分析显示，经等离子体处理的3D打印树脂表面粗糙。因此，热循环前的真空等离子体处理可提高3D打印树脂的SBS，而不影响其性能。
