Lee Ju-Hyoung, Lee Cheong-Hee
Department of Dentistry, Catholic University of Daegu School of Medicine, Daemyung-4-dong, Nam-gu, Daegu 42472, Korea.
Department of Prosthodontics, School of Dentistry, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 41940, Korea.
Dent J (Basel). 2017 Jul 17;5(3):23. doi: 10.3390/dj5030023.
The purpose of this study was to evaluate the shear bond strength (SBS) of two different resin cements (Panavia F 2.0 (Kuraray Medical Inc, Okayama, Japan) and Variolink N (Ivoclar Vivadent AG, Schaan, Liechtenstein)) to 112 zirconia specimens with airborne-particle abrasion and 20%, 30%, or 40% hydrofluoric acid (HF) for 1 or 2 h. A total of eight specimens were used to observe the phase transformation after surface treatments. Six specimens were treated only with HF etching and the average surface roughness (Ra) was analyzed. A one-way ANOVA test was applied for SBS and the effect of HF concentration on Ra. An independent t-test was performed for the comparison of Panavia F 2.0 and Variolink N, and the influence of the HF application time on Ra. A higher HF solution increased SBS and Ra. HF etching produced a lower rate of monoclinic phase transformation. Panavia F 2.0 showed a higher SBS than Variolink N.
本研究的目的是评估两种不同树脂水门汀（Panavia F 2.0（日本冈山可乐丽医疗株式会社）和Variolink N（列支敦士登沙恩义获嘉伟瓦登特股份公司））与112个经空气颗粒研磨以及用20%、30%或40%氢氟酸（HF）处理1小时或2小时的氧化锆试件之间的剪切粘结强度（SBS）。总共使用八个试件来观察表面处理后的相变。六个试件仅用氢氟酸蚀刻处理，并分析平均表面粗糙度（Ra）。对SBS以及氢氟酸浓度对Ra的影响进行单向方差分析测试。对Panavia F 2.0和Variolink N进行独立t检验，以及氢氟酸处理时间对Ra的影响。较高浓度的氢氟酸溶液会提高SBS和Ra。氢氟酸蚀刻产生较低的单斜相转变率。Panavia F 2.0显示出比Variolink N更高的SBS。
