Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Department of General Practice, School of Dentistry, Virginia Commonwealth University, Richmond, Virginia.
J Prosthodont. 2022 Mar;31(3):239-244. doi: 10.1111/jopr.13389. Epub 2021 Jun 1.
To evaluate resin cement bond strength after removal of salivary contamination from a zirconia surface using different cleaning solutions and air-borne particle abrasion.
One-hundred and twenty zirconia specimens (KATANA STML, Noritake) were prepared and divided into 12 groups (n = 10). Groups were subjected to a notched-edge shear bond strength test (ISO 29022) to analyze the bonding efficiency of a resin cement (Panavia V5, Kuraray Noritake Dental Inc.) before and after contamination with saliva. Group 1 (control) was prepared and cemented without salivary contamination. Group 2 was coated with ceramic primer (Clearfil Ceramic Primer Plus, Kuraray Noritake Dental Inc.) then subjected to salivary contamination then tested. Group 3 was contaminated, cleaned by air-borne particle abrasion, ceramic primer and resin cement applied, and tested. Groups 4 to 12 were contaminated, and then different cleaning solutions (water, 4.5% hydrofluoric acid, 35% phosphoric acid, Ivoclean, KATANA cleaner, Zirclean, sodium hypochlorite 4%, and 7.5%) were used to decontaminate the zirconia surface, followed by ceramic primer, resin cement application, and tested. One-way ANOVA and Tukey post-hoc analysis was used to analyze the data.
One-way ANOVA showed statistical differences among cleaning procedures (p < 0.001, F = 13.48). Air-borne particle abrasion was the only group which provided a bond strength (21 ± 2.8 MPa) that was not statistically different than the control group in which no contamination occurred (25.3 ± 3.3 MPa) (p = 0.247). The use of hydrofluoric acid and zirconia cleaning solutions resulted in bond strengths values which were not statistically different from each other (17.5-19.1 MPa).
Air-borne particle, zirconia cleaning solutions and hydrofluoric acid are feasible to decontaminate the zirconia surface from saliva prior to bonding the restoration.
使用不同的清洁溶液和喷丸空气颗粒磨损来评估唾液污染后氧化锆表面的树脂水泥粘结强度。
制备 120 个氧化锆样本（KATANA STML，Noritake）并将其分为 12 组（n = 10）。组接受缺口边缘剪切粘结强度测试（ISO 29022），以分析唾液污染前后树脂水泥（Panavia V5，Kuraray Noritake Dental Inc.）的粘结效率。第 1 组（对照组）制备并粘结，无唾液污染。第 2 组涂覆陶瓷底漆（Clearfil Ceramic Primer Plus，Kuraray Noritake Dental Inc.），然后进行唾液污染，再进行测试。第 3 组污染后，进行喷丸空气颗粒磨损清洁，涂覆陶瓷底漆和树脂水泥，再进行测试。第 4 至 12 组污染后，用不同的清洁溶液（水、4.5%氢氟酸、35%磷酸、Ivoclean、KATANA 清洁剂、Zirclean、次氯酸钠 4%和 7.5%）对氧化锆表面进行去污，然后涂覆陶瓷底漆、树脂水泥应用，再进行测试。采用单因素方差分析和 Tukey 事后检验分析数据。
单因素方差分析显示清洁程序之间存在统计学差异（p < 0.001，F = 13.48）。喷丸空气颗粒磨损是唯一一组提供粘结强度（21 ± 2.8 MPa）的组，与未发生污染的对照组（25.3 ± 3.3 MPa）相比无统计学差异（p = 0.247）。使用氢氟酸和氧化锆清洁溶液的粘结强度值彼此之间无统计学差异（17.5-19.1 MPa）。
喷丸空气、氧化锆清洁溶液和氢氟酸可用于在修复前对氧化锆表面进行唾液去污。
