The Effect of Colloidal Silica and Glaze Coatings on the Adhesion of Zirconia with Various Ytrria Concentration.

IF 1.1 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

European Journal of Prosthodontics and Restorative Dentistry Pub Date : 2023-11-30 DOI:10.1922/EJPRD_2491Villanova12

M Villanova, M Carvalho Prado, Y Neves, E Annese, B Archanjo, R Simão, H E Dos Santos, M Prado

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引用次数: 0

Abstract

Purpose: This study evaluated the effect of coating traditional and translucent Y-TZP with an industrial nanometric colloidal silica or glaze before or after sintering on the adhesion of zirconia with various ytrria concentration.

Materials and methods: Specimens of Y-TZP with 3% and 5% yttria were subdivided into 5 groups (n=10), according to the coating applied and moment of application (before or after Y-TZP sintering): Control (no coating), Colloidal Silica/Sintering, Sintering/Colloidal Silica, Glaze/Sintering, Sintering/ Glaze. Lithium disilicate (LD) was used as positive control. Except for Y-TZP controls, groups were conditioned with silane before cementation with a self-adhesive resin cement. After 24 hours, the shear bond strength and failure analysis were performed. Also, analysis of specimens' surface was accomplished with SEM-EDX. Kruskal-Wallis and Dunn tests were applied to analyze differences between groups (p⟨0.05).

Results: Overall, the worst and best values of shear bond strength test were control and glaze after sintering groups. Different morphological and chemical aspects were observed in SEM-EDX analysis.

Conclusions: Coating Y-TZP with colloidal silica showed unsatisfactory results. In 3Y-TZP, the surface treatment associated with the best adhesion values was the application of glaze after zirconia sintering. However, in 5Y-TZP, glaze application can be performed before or after the zirconia sintering to optimize clinical steps.

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胶体二氧化硅和釉膜对不同钇浓度氧化锆附着力的影响。

目的:研究在烧结前后用工业纳米二氧化硅胶体或釉料涂覆传统的和半透明的Y-TZP对不同氧化钇浓度氧化锆的附着力的影响。材料与方法:将钇含量为3%和5%的Y-TZP试样，根据涂覆涂层和涂覆时刻(Y-TZP烧结前后)分为5组(n=10):对照(未涂覆)、硅溶胶/烧结、硅溶胶/烧结、釉料/烧结、烧结/釉料。以二硅酸锂(LD)为阳性对照。除Y-TZP对照组外，各组在用自粘树脂水泥胶结前用硅烷进行条件处理。24h后进行剪切粘结强度及破坏分析。同时，利用SEM-EDX对试样表面进行了分析。采用Kruskal-Wallis和Dunn检验分析组间差异(p⟨0.05)。结果:总体而言，烧结后釉料组和对照组的剪切强度测试结果最差、最佳。在SEM-EDX分析中观察到不同的形态和化学方面。结论:硅胶胶体包覆Y-TZP效果不理想。在3Y-TZP中，与最佳附着力值相关的表面处理是在氧化锆烧结后应用釉料。然而，在5Y-TZP中，釉面应用可以在氧化锆烧结之前或之后进行，以优化临床步骤。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Prosthodontics and Restorative Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.30

自引率

7.70%

发文量

期刊介绍： The European Journal of Prosthodontics and Restorative Dentistry is published quarterly and includes clinical and research articles in subjects such as prosthodontics, operative dentistry, implantology, endodontics, periodontics and dental materials.