超声清洗介质是否会影响树脂水门汀对长石陶瓷的黏附？

Does the ultrasonic cleaning medium affect the adhesion of resin cement to feldspathic ceramic?

机构信息

Department of Prosthodontics and Dental Materials, Federal University of Juiz de Fora, Juiz de Fora, Brazil.

出版信息

J Adhes Dent. 2012 Dec;14(6):507-9. doi: 10.3290/j.jad.a28625.

DOI:10.3290/j.jad.a28625

PMID:23240109

Abstract

PURPOSE

To evaluate the effect of different cleaning media on the adhesion of resin cement to feldspathic ceramic after etching.

MATERIALS AND METHODS

The cementation surfaces of ceramic blocks (N = 20, n = 5 per group) were etched with 10% hydrofluoric acid (HF) gel for 20 s and rinsed for 60 s. They were then randomly assigned to 4 groups: G1: air-water spray+drying (control); G2: ultrasonic cleaning in distilled water for 4 min+drying; G3: ultrasonic cleaning in 99.5% acetone for 4 min+drying; G4: ultrasonic cleaning in 70% alcohol for 4 min+drying. The ceramic blocks were silanized and cemented (RelyX ARC) to the composite blocks. Subsequently, the microtensile bond strength test (µTBS) was performed. In addition, EDS analysis was made to assess the elemental composition of the conditioned and cleaned ceramic surfaces.

RESULTS

A significantly higher mean µTBS was obtained when specimens had been ultrasonically cleaned in distilled water (G2: 18.8 ± 0.4 MPa) (p < 0.05) compared to other groups (G1: 16.6 ± 0.5; G3: 16.1 ± 0.9; G4: 15.8 ± 1.4) (one-way ANOVA). EDS analysis indicated the presence of F- only in G1. Dissolved precipitates after HF etching were removed by ultrasonic cleaning.

CONCLUSION

Cleaning the HF-etched ceramic surface ultrasonically in distilled water is recommended, instead of rinsing it with air-water spray only.

摘要

目的

评估不同清洁介质对酸蚀后长石质陶瓷粘结树脂水泥的粘结效果。

材料与方法

将陶瓷块的粘结面（N=20，n=5/组）用 10%氢氟酸（HF）凝胶蚀刻 20 s，并用流水冲洗 60 s。然后将其随机分为 4 组：G1：空气-水喷雾+干燥（对照）；G2：在蒸馏水中超声清洗 4 分钟+干燥；G3：在 99.5%丙酮中超声清洗 4 分钟+干燥；G4：在 70%酒精中超声清洗 4 分钟+干燥。陶瓷块经硅烷化和粘结（RelyX ARC）到复合块上。随后进行微拉伸粘结强度测试（µTBS）。此外，还进行了 EDS 分析以评估处理和清洁后的陶瓷表面的元素组成。

结果

与其他组（G1：16.6 ± 0.5 MPa；G3：16.1 ± 0.9 MPa；G4：15.8 ± 1.4 MPa）相比，经蒸馏水中超声清洗的试件（G2：18.8 ± 0.4 MPa）的平均 µTBS 显著更高（p < 0.05）（单因素方差分析）。EDS 分析表明，仅在 G1 中存在 F-。HF 蚀刻后溶解的沉淀物通过超声清洗去除。