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Lauer (2006), Determining the marginal fit of CAD/CAM bridge frameworks, Pan European Federation Conference (PEF CED) #0254 Lava 3-unit bridges showed smallest Marginal gap v. GRATTON, University of Iowa, Iowa City, USA 3M ESPE Lava showed the lowest marginal and absolute marginal gap in comparison to Cercon and DCS A. 0828 In-Vitro Vertical Marginal Gap Comparison of CAD/CAM Zirconium Copings A.J.T. Lava zirconia shows natural translucency and unmatched esthetics.Additionally, Lava is unique with a patented substructure shading system producing 8 shades, which further increase the final esthetics. And finally- the translucency of the material. Clinical studies that show 100% survival rate. What is even more important than the initial flex strength, is the LONG-TERM STABILITY of the material.

However, many of the competitive zirconias are able to produce high initial flex strengths as well, so the gap is narrowing. Strength and Long Term Stability: We have found flexural strengths of Lava zirconia to be very high – as high in some cases as 1400 MPa and consistently higher than 1000 MPa. The studies have found that Lava consistently performs high on marginal fit. 3M and others have performed numerous studies on fit.

We’ve talked about the differences in material - but the next question is how do these differences manifest themselves clinically? The difference we see comes in: Marginal Fit: In a market research study, we found that marginal fit is the most important criteria to doctors.