Soygun Koray, Varol Osman, Ozer Ali, Bolayir Giray
Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
Department of Periodontology, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
J Adv Prosthodont. 2017 Jun;9(3):200-207. doi: 10.4047/jap.2017.9.3.200. Epub 2017 Jun 19.
In this study, three bioceramic materials, [IPS Empress CAD (Ivoclar), IPS e.max CAD (Ivoclar), and Lava Ultimate CAD (3M ESPE)] were treated with three commercial mouthrinses [Listerine, Tantum Verde, and Klorhex]; and changes in colour reflectance and surface roughness values were then quantitatively assessed.
One hundred and twenty ceramic samples, with dimensions of 2 × 12 × 14 mm, were prepared and divided into nine sample groups, except three control samples. The samples were immersed in the mouthrinse solutions for 120 hrs, and changes in colour reflectance and surface roughness values were measured by UV light spectrophotometry (Vita Easyshade; VITA Zahnfabrik) and by profilometer device (MitutoyoSurftest SJ-301), respectively. The change of surface roughness was inspected by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM).
There was a positive correlation between the ΔE and increase in the surface roughness. Two of the ceramic materials, IPS Empress and Lava Ultimate, were affected significantly by the treatment of the mouthrinse solutions (<.05). The most affecting solution was Tantum Verde and the most affected material was Lava Ultimate. As expected, the most resistant material to ΔE and chemical corrosion was IPS e max CAD among the materials used.
This work implied that mouthrinse with lower alcohol content had less deteriorating effect on colour and on the surface morphology of the bioceramic materials.
在本研究中，三种生物陶瓷材料[义获嘉全瓷冠（义获嘉公司）、IPS e.max全瓷冠（义获嘉公司）和Lava Ultimate全瓷冠（3M ESPE公司）]分别用三种市售漱口水[李施德林、Tantum Verde和氯己定]进行处理；然后定量评估颜色反射率和表面粗糙度值的变化。
制备120个尺寸为2×12×14mm的陶瓷样品，除三个对照样品外，分为九个样品组。将样品浸入漱口水溶液中120小时，分别用紫外光分光光度计（Vita Easyshade；维他齿科）和轮廓仪（三丰表面粗糙度仪SJ - 301）测量颜色反射率和表面粗糙度值的变化。通过扫描电子显微镜（SEM）和原子力显微镜（AFM）检查表面粗糙度的变化。
ΔE与表面粗糙度增加之间存在正相关。其中两种陶瓷材料，义获嘉全瓷冠和Lava Ultimate全瓷冠，受到漱口水溶液处理的显著影响（<.05）。影响最大的溶液是Tantum Verde，受影响最大的材料是Lava Ultimate全瓷冠。正如预期的那样，在所使用的材料中，对ΔE和化学腐蚀最具抗性的材料是IPS e.max全瓷冠。
这项工作表明，酒精含量较低的漱口水对生物陶瓷材料的颜色和表面形态的劣化作用较小。
