Effect of surface treatment and cleaning on the bond strength to polymer-infiltrated ceramic network CAD-CAM material

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dc.coverageDOI: 10.1016/j.prosdent.2020.08.016
dc.creatorConejo, Julian
dc.creatorOzer, Fusun
dc.creatorMante, Francis
dc.creatorAtria Tuesta, Pablo Jesus
dc.creatorBlatz, Markus B.
dc.date2021
dc.date.accessioned2025-11-18T19:43:46Z
dc.date.available2025-11-18T19:43:46Z
dc.descriptionStatement 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.eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/8a53af00-2cd1-4528-bbb9-a739a2bb5a5b
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/53053
dc.languageeng
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.sourcevol.126 (2021) nr.5 p.698-702
dc.titleEffect of surface treatment and cleaning on the bond strength to polymer-infiltrated ceramic network CAD-CAM materialeng
dc.typeArticleeng
dc.typeArtículospa
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