BruxZir Solid Zirconia Crowns and Bridges

SCIENTIFIC VALIDATION

Zirconia vs. Porcelain Wear Study Description: Although conventional belief might suggest that zirconia's high fracture strength and surface hardness would cause a greater degree of wear on enamel, a recent study found that the degree of wear on the opposing tooth was actually four times greater in dental porcelain than in polished, unglazed zirconia, suggesting that zirconia restorations are not only more fracture-resistant than porcelain restorations, but also gentler in their functional interaction with natural dentition.

BruxZir® Solid Zirconia vs. Ceramco®3 - A Comparative Wear Study Description: BruxZir Solid Zirconia and Ceramco3 were recently tested in a comparative wear study. Each material was tested using the Willytech Chewing Simulator, which simulated the clinical performance of the material over a period of five years. After 1.2 million wear cycles under a load of 5 kg, BruxZir Solid Zirconia compared favorably to Ceramco3 with barely detectable wear.

BruxZir® Solid Zirconia vs. IPS e.max® Enamel Wear Test Description: Some dentists are concerned about the wear of enamel when opposing BruxZir full-contour zirconia crowns and bridges. In a recent study1 to measure the volumetric loss of enamel, glazed BruxZir Solid Zirconia was found to wear compatible with enamel and virtually identical to glazed IPS e.max. 1. Wear of Enamel on Polished and Glazed Zirconia: Shah S, Michelson C, Beck P, Ramp LC, Cakir D, Burgess J. 2010; Washington, DC: AADR. Abstract #129615.

Light Transmission vs. Wavelength Graph Description: BruxZir Zirconia exhibits higher translucency in the warm color spectral wavelength (>550 nanometers) allowing for more natural looking restorations.

Scanning Electron Microscope Images Description: SEM of sintered, colloidally processed BruxZir Solid Zirconia vs. sintered, isostatically pressed zirconia.

High Flexural Strength Description: Lithium disilicate ceramics deliver 400 MPa of flexural strength and typical zirconia materials have a flexural strength of more than 1200 MPa. However, because of post-powder processing, BruxZir Solid Zirconia dental restorations are able to exceed that strength threshold, with flexural strengths up to 1465 MPa.

Antagonist Wear Study Description: The antagonistic (Steatite balls) wear shows BruxZir® Solid Zirconia only with 72±21 micron, which is significantly lower than Ceramco®3, with 110±48 micron. The University of Tübingen study was run using an eight chamber Willytec Chewing Simulator at 1.2 million cycles.

High-Strength Crown Options Description: View a side-by-side comparison of high-strength crown options, and conduct your own analysis on how BruxZir restorations compare visually to traditional PFM and full-cast restorations. While some patients may favor the esthetics of precious or non-precious metals, BruxZir crowns & brides present a more lifelike tooth shade, making the final restoration nearly indistinguishable from natural dentition.