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Scientific Validation

 

BruxZir Solid Zirconia Crowns and Bridges 2-Year Clinical Performance Report
 
Description: Ninety-eight percent of BruxZir Solid Zirconia Crowns and Bridges restorations manufactured by Glidewell Dental Laboratories received a 5 or excellent rating at two-year recall. All of the single crowns and all of the three- and four-unit bridges had no evidence of fracture or chipping. One of two five-unit bridges failed shortly after cementation and was replaced. Over the two year period, BruxZir has proven to be an excellent restoration with respect to esthetics, resistance to fracture/chipping, resistance to marginal discoloration, wear resistance, and retention. BruxZir received a clinical rating of 98%.

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bruxzir restorations deliver more lifelike results
 
Description: Note the differences in these photomicrographs of solid zirconia brands. The high-resolution photomicrographs capture cross-sectioned samples of BruxZir Solid Zirconia and two generic competitors. The visible white spots in the competitor samples reveal agglomerates that remain after the sintering process, which decrease translucency and flexural strength. BruxZir Solid Zirconia has a smaller grain size and is nearly free of agglomerates. Unique, patented colloidal zirconia processing gives BruxZir Solid Zirconia higher flexural strength and provides more natural-looking restorations.

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Zirconia vs. Porcelain Wear Study
 
Zirconia vs. Porcelain Wear StudyDescription: 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.

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BruxZir® vs. Ceramco®3 – A Comparative Wear Study
 
BruxZir® 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 compared favorably to Ceramco3 with barely detectable wear.

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BruxZir® vs. IPS e.max® Enamel Wear Test
 
BruxZir® 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 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.

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Transmission vs. Wavelength Graph
 
Transmission vs. Wavelength Graph Description: BruxZir exhibits higher light transmission resulting in a more natural shade value.




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Scanning Electron Microscope Images
 
Scanning Electron Microscope Images Description: SEM of sintered colloidally processed BruxZir vs. sintered Isostatically Pressed zirconia.




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High Flexural Strength
 
High Flexural Strength Description: Lithium Disilicate ceramics have 400 MPa 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.


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Antagonist Wear Study
 
Antagonist Wear Study Description: The antagonistic (Steatite balls) wear shows BruxZir 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.


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High Strength Crown Options
 
High Strength Crown Options Description: View a side-by-side comparison of high-strength crown options, and then conduct your own analysis of how BruxZir crowns compare visually to traditional PFM and full-cast restorations. Patients do not like metal showing in their smile, and they will will find that BruxZir crowns present a more natural-looking tooth shade.


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