Awad Mohamed M, Alhalabi Feras, Alzahrani Khaled Mosfer, Almutiri Majed, Alqanawi Fawaz, Albdiri Lafi, Alshehri Abdullah, Alrahlah Ali, Ahmed Mohammed H
Department of Conservative Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.
Department of Prosthetic Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.
Materials (Basel). 2022 Jan 28;15(3):1023. doi: 10.3390/ma15031023.
Contamination of zirconia restorations before cementation can impair the resin-zirconia bonding durability. The objective of this study was to evaluate the effect of human saliva or blood decontamination with 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP)-containing cleaner on the resin-zirconia shear bond strength (SBS).
A total of 220 zirconia specimens were prepared and air-abraded and randomly distributed into 11 groups ( = 20 per group). Except for the control group (no contamination), zirconia specimens were contaminated with either human saliva (five groups) or blood (five groups), and then subjected to one of five cleaning methods: water rinsing, 38% phosphoric acid etchant (Pulpdent Corp., Watertown, MA, USA), 70% isopropanol alcohol (Avalon Pharma, Riyadh, Saudi Arabia), Ivoclean (Ivoclar Vivadent, Schaan, Lichtenstein) and Katana Cleaner (Kuraray Noritake, Tokyo, Japan). The resin-zirconia SBS was tested at 24 h and after thermocycling (10 k cycles). Three-way ANOVA followed by Tukey's multiple comparisons test were utilized to analyze the SBS data. Failure modes were evaluated using a scanning electron microscope.
Both blood and saliva significantly affected resin-zirconia SBS as contaminants. After thermocycling, there was no statistically significant difference between SBS obtained after decontamination with the Katana Cleaner (blood, 6.026 ± 2.805 MPa; saliva, 5.206 ± 2.212 MPa) or Ivoclean (blood, 7.08 ± 3.309 MPa; saliva, 6.297 ± 3.083 MPa), and the control group (no contamination, 7.479 ± 3.64 MPa). Adhesive and mixed failures were the most frequent among the tested groups.
Both 10-MDP-containing cleaner (Katana Cleaner) and zirconium oxide-containing cleaner (Ivoclean) could eliminate the negative effect of saliva and blood contamination on resin-zirconia SBS.
氧化锆修复体在粘结前受到污染会损害树脂与氧化锆的粘结耐久性。本研究的目的是评估用含10 - 甲基丙烯酰氧基癸基二氢磷酸酯（10 - MDP）的清洁剂对人唾液或血液进行去污处理对树脂 - 氧化锆剪切粘结强度（SBS）的影响。
共制备220个氧化锆试件，进行空气喷砂处理，并随机分为11组（每组 = 20个）。除对照组（未受污染）外，氧化锆试件分别用人类唾液（五组）或血液（五组）污染，然后采用以下五种清洁方法之一进行处理：水冲洗、38%磷酸蚀刻剂（美国马萨诸塞州沃特敦的Pulpdent公司）、70%异丙醇（沙特阿拉伯利雅得的阿瓦隆制药公司）、Ivoclean（列支敦士登沙恩的义获嘉伟瓦登特公司）和Katana Cleaner（日本东京的可乐丽诺瑞特公司）。在24小时和热循环（10000次循环）后测试树脂 - 氧化锆的SBS。采用三因素方差分析，随后进行Tukey多重比较检验来分析SBS数据。使用扫描电子显微镜评估失效模式。
血液和唾液作为污染物均显著影响树脂 - 氧化锆的SBS。热循环后，用Katana Cleaner去污后获得的SBS（血液，6.026±2.805兆帕；唾液，5.206±2.212兆帕）或Ivoclean去污后获得的SBS（血液，7.08±3.309兆帕；唾液，6.297±3.083兆帕）与对照组（未受污染，7.479±3.64兆帕）之间无统计学显著差异。在测试组中，粘结和混合失效最为常见。
含10 - MDP的清洁剂（Katana Cleaner）和含氧化锆的清洁剂（Ivoclean）均可消除唾液和血液污染对树脂 - 氧化锆SBS的负面影响。
