Effect of airborne-particle abrasion and polishing on novel translucent zirconias: Surface morphology, phase transformation and insights into bonding
Effect of airborne-particle abrasion and polishing on novel translucent zirconias: Surface morphology, phase transformation and insights into bonding
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DOI：
10.2186/jpr.jpor_2019_524
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发表时间：
2021-01-01
影响因子：
3.6
通讯作者：
Johansson, Carina B.
中科院分区：
文献类型：
--
作者：
Franco-Tabares, Sebastian;Wardecki, Dariusz;Johansson, Carina B.
目的：本研究的目的是探讨克恩的空气传播粒子磨损协议（KAPA）和抛光对两个半透明氧化锆的影响（4 Y，5 Y-氧化锆）相比，传统的氧化锆方法：采用X射线衍射（XRD）和干涉仪对两种不同的表面处理方法进行了分析（0.1 MPa，50 μ m氧化铝，10-12 mm距离，15秒和30秒，使用99%异丙醇在超声中清洗）和2）临床递送抛光膏（ZirconBrite，Dental Ventures，USA）。剪切粘结强度试验（SBS）是用高度抛光和几乎平坦的表面与10-MDP基骨水泥和KAPA改性的表面与磷酸锌骨水泥组合进行的。结果：3 Y-、4 Y-和5 Y-氧化锆单斜相含量的平均值分别为13wt%、7wt%和2wt%，在15和30秒之间没有发现差异。抛光没有导致在任何氧化锆中的相转变为单斜相。在所有类型的氧化锆，无论表面处理的菱面体相。剪切粘结强度测试显示抛光/10-MDP基水泥为5 MPa，KAPA/磷酸锌为3 MPa。两种不同的表面处理之间的统计学显着差异被发现，但不之间的类型zirconias.Conclusions：KAPA为15秒似乎是等于30秒的形态和相变。唯一的微保留似乎是不完全负责的10-MDP和氧化锆进行KAPA的粘结现象。
Purpose: The purpose this study was to investigate the effect of Kern ' s air-borne particle abrasion protocol (KAPA) and polishing on two translucent zirconias (4Y, 5Y-zirconias) compared to a traditional zirconia (3Y-zirconia).Methods: Two different surface treatments were analysed by X-ray diffraction (XRD) and interferometry 1) KAPA (0.1 MPa, 50 mu m alumina, 10-12 mm distance, 15 sec and 30 sec and cleaning in ultrasound using isopropyl alcohol 99%) and 2) Clinical-delivery polishing paste (Zircon Brite, Dental Ventures, USA). Shear-bond strength tests (SBS's) were performed with a highly polished and virtually flat surface in combination with a 10-MDP based cement and a surface modified by KAPA in combination with zinc phosphate cement. The SBS was expressed in terms of MPa.Results: The mean values for monoclinic content were 13 wt%, 7 wt% and 2 wt% for 3Y-, 4Y- and 5Y-zirconias respectively, no differences were found between 15 and 30 seconds. Polishing did not result in phase transformation to monoclinic phase in any of the zirconias. The rhombohedral phase was identified in all types of zirconias regardless of surface treatment. Shear-bond strength tests showed 5 MPa for polished/10-MDP based cement and 3 MPa for KAPA/Zinc phosphate. Statistically significant differences were found between the two different surface treatments but not between the types of zirconias.Conclusions: KAPA for 15 sec seems to be equal to 30 sec regarding morphology and phase transformation. Sole micro-retention appears not to be fully responsible for the bonding phenomena of 10-MDP and zirconia that underwent KAPA.