Division of Cariology and Restorative Dentistry, Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University.
Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University.
Dent Mater J. 2019 Jun 1;38(3):437-443. doi: 10.4012/dmj.2018-029. Epub 2019 Apr 9.
The aim of this study was to evaluate the effects of air abrasion and plasma treatment on the bond strength between resin and ceriastabilized tetragonal zirconia polycrystals/alumina (Ce-TZP/AlO). Ce-TZP/AlO specimens were ground with #1000 silicon-carbide paper, air abraded with alumina, and then exposed to glow-discharge plasma (Abrasion/Plasma). Specimens without air abrasion and/or plasma exposure were also prepared as controls (Abrasion/No plasma, No abrasion/Plasma, and No abrasion/No plasma). The specimens were bonded to resin composite disks with a self-adhesive resin cement (SA) or a luting composite containing no functional monomer (LC). Shear bond strengths were determined after 10,000 thermocycles at 4 and 60°C, and the data were analyzed by nonparametric tests (α=0.05, n=8/group). When using SA, the Abrasion/Plasma specimens exhibited the highest bond strength, followed by the Abrasion/No plasma, No abrasion/Plasma, and No abrasion/No plasma specimens. For LC, neither air abrasion nor plasma treatment exhibited any significant effect on bond strength.
本研究旨在评估喷砂和等离子处理对树脂与稳定氧化锆四方多晶陶瓷/氧化铝（Ce-TZP/AlO）之间粘结强度的影响。Ce-TZP/AlO 试件先用#1000 碳化硅砂纸打磨，再用氧化铝喷砂，然后进行辉光放电等离子体处理（喷砂/等离子体）。未进行喷砂和/或等离子体处理的试件也作为对照（喷砂/无等离子体、无喷砂/等离子体和无喷砂/无等离子体）。将试件用自粘结树脂水门汀（SA）或不含官能单体的水门汀（LC）粘结到树脂复合盘中。在 4°C 和 60°C 下进行 10000 次热循环后，测定剪切粘结强度，并采用非参数检验进行数据分析（α=0.05，n=8/组）。当使用 SA 时，喷砂/等离子体处理组的粘结强度最高，其次是喷砂/无等离子体处理组、无喷砂/等离子体处理组和无喷砂/无等离子体处理组。对于 LC，喷砂和等离子体处理均未对粘结强度产生显著影响。
