Effect of surface treatment and cleaning on the bond strength to polymer-infiltrated ceramic network CAD-CAM material
| Autor: | Pablo J. Atria, Julian Conejo, Fusun Ozer, Markus B. Blatz, Francis K. Mante |
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| Rok vydání: | 2021 |
| Předmět: |
Ceramics
Materials science Polymers Surface Properties Polymer infiltrated ceramic network Composite number Hydrofluoric Acid 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Hydrofluoric acid Etching (microfabrication) Materials Testing Ceramic Composite material Phosphoric acid Acid etching Bond strength Dental Bonding 030206 dentistry Silanes Dental Porcelain Resin Cements chemistry visual_art visual_art.visual_art_medium Computer-Aided Design Oral Surgery |
| Zdroj: | The Journal of Prosthetic Dentistry. 126:698-702 |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/j.prosdent.2020.08.016 |
| Popis: | Statement of problem Optimal composite resin bonds to polymer-infiltrated ceramic network (PICN) computer-aided design and computer-aided manufacturing (CAD-CAM) materials are essential for clinical success. However, comparative bond strength studies on the influence of different etching and cleaning methods on these materials are lacking. Purpose The purpose of this in vitro study was to measure and compare the microshear bond strength (μSBS) of a composite resin cement with that of a PICN material after different surface treatment and cleaning methods. Material and methods Seventy specimens of a CAD-CAM PICN were divided into 7 groups (n=10): no treatment (control), hydrofluoric acid etching for 20 seconds (HF20), 60 seconds (HF60), 120 seconds (HF120), HF20 + phosphoric acid for 60 seconds and ultrasonic bath for 5 minutes, HF60 + PH, and HF120 + PH. After surface treatment, a silane coupling agent and composite resin cement were applied. Microshear bond strength was determined, and data were analyzed with 1-way ANOVA and Tukey post hoc multiple comparison tests (α=.05). Results All HF acid treatments resulted in a significant increase in bond strength to the polymer-infiltrated ceramic network material (P=.02). Bond strength values for HF etching for 20 seconds were significantly lower than those for 60 seconds and 120 seconds (P=.034). No difference was found between 60 seconds and 120 seconds of HF etching time (P=.986). Additional surface treatment with phosphoric acid 60 seconds and ultrasonic bath 5 minutes did not improve the bond strength beyond values obtained by hydrofluoric acid treatment only (P=.834). Most failures were cohesive. Conclusions Acid etching and surface treatment have significant effects on composite resin bond strength to a PICN CAD-CAM material. HF etching for 60 seconds or 120 seconds provides the highest bond strengths. Cleaning methods after etching did not have any significant effect on bond strength. |
| Databáze: | OpenAIRE |
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