|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Advanced Materials in Dental and Orthopedic Applications
||Improving the Compatibility of a Veneering Ceramic System Using a New Graded Interlayer Composition
||Sheila Passos, Bernard Linke, Paul Major, John Nychka
|On-Site Speaker (Planned)
The aim of this study was to evaluate the effect of a new graded interlayer composition between Y-TZP ceramic and the veneer layer of an all-ceramic system, and the effect of different cooling procedures on the flexural strength. Bar-shaped specimens of Y-TZP ceramic were divided into three groups: no graded interlayer, a glass interlayer (silica-based glass), and a mix graded interlayer of glass and porcelain veneer material. The specimens were cooled using a rapid or a slow cooling rate and tested in four-point bending and analyzed by SEM. Data were analyzed using two-way ANOVA, followed by Post Hoc tests with Bonferroni correction and Weibull distribution. Ungraded interlayer using the rapid cooling technique exhibited the highest flexural strength; however, it presented the greatest debonding area of porcelain under tension and low reliability. A glass interlayer between porcelain veneer and zirconia core presents as a good alternative for zirconia based restorations.
||Planned: A print-only volume