Scherfestigkeit von ZrO₂-Komposit-Verbindungen nach künstlicher Alterung

In dieser In-vitro-Studie wurde der Einfluss künstlicher Alterung auf die Verbundstabilität zwischen ZrO₂-Keramik und Komposit nach Konditionierung mit einem ZrO₂-Primer untersucht. Zum Vergleich wurden Proben durch Silanisieren, Anrauhen oder Kombinationen beider Vorgänge behandelt. Alle Proben wurden im Wasserbad gealtert und Thermowechselbelastungen unterzogen. Es zeigte sich eine signifikant höhere Stabilität nach Anwendung des ZrO₂-Primers als nach den anderen Oberflächenvorbehandlungen.

This in vitro study investigated the influence of artificial aging on the shear bond strength between a composite and zirconia after application of a zirconia primer, compared with pretreatment by grinding, silanization or a combination of these two methods. All specimens were subjected to artificial aging by water storage and thermocycling. Application of the zirconia primer resulted in significantly higher bond strength than mechanical treatment or silanisation.

Schlüsselwörter

Zirkoniumdioxidkeramik - Primer - Chipping - künstliche Alterung

Key words

Zirconia - primer - chipping - artificial aging

• Literatur

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