Department of Prosthodontics, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
Department of Materials Science and Engineering, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
J Nanosci Nanotechnol. 2020 Sep 1;20(9):5771-5774. doi: 10.1166/jnn.2020.17630.
The purpose of this study was to examine the effect of plasma treatment by treating the surface of Co-Cr alloy, Ti-6Al-4V alloy, and CP-Ti alloy as a material for denture metal frameworks with non-thermal atmospheric pressure plasma (NTAPP) and measuring their shear bond strength (SBS) with a heat-cured resin. 20 specimens were prepared for each of Co-Cr, Ti-6Al-4V, and CP-Ti alloys. Each metal alloy group was divided into the following subgroups depending on NTAPP treatment: C (Co-Cr alloy without plasma), T (CP-Ti without plasma), A (Ti-6Al-4V alloy without plasma), CP (Co-Cr alloy with plasma), TP (CP-Ti with plasma) and AP (Ti-6Al-4V alloy with plasma). Specimens were treated with a metal conditioner and bonded to a denture base resin. SBS was measured using a universal testing machine. All data obtained were statistically analyzed using two-way analysis of variance (ANOVA), Tukey's honestly significant difference (HSD) test, and independent -test. The mean values (SD) of SBS (MPa) were: 10.31 (1.19) for C group; 12.43 (0.98) for T group; 13.75 (2.02) for A group; 13.53 (1.61) for CP group; 16.87 (1.55) for TP group; 17.46 (1.65) for AP group. The SBS of the AP group was the highest while that of the C group was the lowest. SBS of specimen treated with NTAPP was significantly increased regardless of metal alloy types ( < 0.001). Within the limitations of this study, NTAPP can increases the SBS of Co-Cr alloy, CP-Ti alloy, and Ti-6Al-4V alloy with a denture base resin.
本研究的目的是通过用非热常压等离子体（NTAPP）处理 Co-Cr 合金、Ti-6Al-4V 合金和 CP-Ti 合金作为义齿金属框架的材料来研究其表面处理的效果，并测量它们与热固化树脂的剪切结合强度（SBS）。Co-Cr、Ti-6Al-4V 和 CP-Ti 合金每种材料都制备了 20 个样本。每个金属合金组根据 NTAPP 处理进一步分为以下亚组：C（无等离子体的 Co-Cr 合金）、T（无等离子体的 CP-Ti）、A（无等离子体的 Ti-6Al-4V 合金）、CP（有等离子体的 Co-Cr 合金）、TP（有等离子体的 CP-Ti）和 AP（有等离子体的 Ti-6Al-4V 合金）。样本用金属调节剂处理，然后与义齿基底树脂结合。使用万能试验机测量 SBS。使用双向方差分析（ANOVA）、Tukey 诚实显著差异（HSD）检验和独立 t 检验对所有获得的数据进行统计分析。SBS（MPa）的平均值（SD）分别为：C 组 10.31（1.19）；T 组 12.43（0.98）；A 组 13.75（2.02）；CP 组 13.53（1.61）；TP 组 16.87（1.55）；AP 组 17.46（1.65）。AP 组的 SBS 最高，C 组的 SBS 最低。无论合金类型如何，用 NTAPP 处理的样本的 SBS 均显著增加（<0.001）。在本研究的限制范围内，NTAPP 可以提高义齿基底树脂中 Co-Cr 合金、CP-Ti 合金和 Ti-6Al-4V 合金的 SBS。
