REPORT EXCERPT: Ninety-eight percent of BruxZir Solid Zirconia Crowns and Bridges restorations manufactured by Glidewell Dental Laboratories received a 5 or excellent rating at 18-month 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 18-month 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%.
SOURCE: The DENTAL ADVISOR. Since 1984, THE DENTAL ADVISOR has provided dental professionals worldwide with concise, accurate, and objective information using in-vivo and in-vitro results on the performance of products and equipment based on clinical and laboratory research. For the full report, click here.
Glidewell Laboratories, industry-leading provider of dental laboratory products and services, announced today the release of BruxZir Shaded Milling Blanks for the milling of authentic BruxZir Solid Zirconia crowns & bridges. These pre-shaded milling blanks feature homogenous shading throughout the entire zirconia blank, providing dental labs with improved shade consistency, while saving them time and money.
Dental laboratories will now be able to produce BruxZir crowns & bridges with increased efficiency and lowered costs because they will no longer have to invest in coloring liquids or the labor required for the coloring process. BruxZir restorations milled from these pre-shaded blocks just need to be sintered before being finished using simple staining and glazing techniques. Compared to zirconia restorations that have been colored using the dipping technique, the BruxZir Shaded Milling Blank formulation provides total color penetration throughout the entire milling block, eliminating the possibility of white "show-through" after adjustment.
According to Robin Carden, vice president of research and development at Glidewell, the new BruxZir Shaded material also shows an increase in translucency. "Our team of chemists have worked very hard on this innovation," says Carden, "and have added a group of shading agents that work well with our patent-pending colloidal process. These proprietary shading agents do not leave any organic binders, such as carbon impurities, in the grain boundaries, so we are left with a very clean material that transmits the warm colors of the mouth through the BruxZir zirconia better than the dipped variety." Carden explains that when a full-contour zirconia restoration achieves translucency in the high color wavelength range (500-850 nanometers), or what is called the "warm color region," it makes a disappearing act in the mouth.
BruxZir Shaded Milling Blanks come in four base shades (100, 200, 300, 400) that can be stained to provide a lifelike match to all 16 shades in Vident’s VITA Classical Shade Guide range. Blank 100 provides base shades for A1, B1 and C1 VITA Classical shades; blank 200 provides base shades for A2, A3 and B2 VITA Classical shades; blank 300 provides base shades for A3.5, B3, C2, D2, D3 and D4 shades; and blank 400 provides base shades for A4, B4, C3 and C4 VITA Classical shades. Nearly 50 percent of all BruxZir restorations produced at Glidewell are made from the blank 200 shade group.
Like the original BruxZir Milling Blanks, BruxZir Shaded Milling Blanks are 98 mm in diameter and are available in 12 mm, 15 mm, 20 mm and 25 mm thicknesses. They can be used in many popular milling systems, including Glidewell’s BruxZir™ Milling System and milling units from Intelitek, Haas, VHF, Wieland Dental, Röders, Digital Dental Lab, imes-icore and B&D Dental Technologies.
For BruxZir Shaded Milling Blank pricing, more information or to place an order, call Glidewell Direct at 888-303-3975. To learn more about the BruxZir Authorized Lab program, visit www.bruxzir.com.
Glidewell Laboratories is a privately owned corporation that has more than 42 years of history as a provider of high-quality services and products to dental laboratories nationwide. It has its own R&D and manufacturing teams comprising 161 experienced professionals focused on Inclusive Dental Implant Solutions and BruxZir Solid Zirconia and is one of the most resourceful dental laboratories in the world. Its newly developed CAD/CAM processing capabilities are recognized as among the most advanced in the industry. To view our large selection of products and services, visit the Glidewell Laboratories website, www.glidewelldental.com.
When lecturing on new monolithic restorations such as BruxZir® Solid Zirconia and IPS e.max®, the most common question I receive is in regard to the best way to cement or bond these restorations. Using a product most dentists aren't aware of comes with a specific protocol, so I decided to put together this presentation to clear up any confusion: Updated BruxZir® Cleaning, Cementing & Bonding Protocol video.
– Michael C. DiTolla, DDS, FAGD
The before-and-after photos below illustrate a case where we prepped tooth #8 and #9 for BruxZir crowns. Tooth #8 is a natural tooth that has been endondontically treated and tooth #9 has an existing PFM that needs to be replaced. The retracted and nonretracted "after" photos show the final BruxZir crowns cemented in place. Now, I'm not suggesting that you switch to BruxZir crowns for all of your anterior crowns; in fact, this case would have worked very well with IPS e.max. However, for the patient who has broken other restorations or shows higher-than-average wear, BruxZir restorations can be an excellent anterior restorative option.
--Michael C. DiTolla, DDS, FAGD
 Not a trademark of Glidewell Laboratories
For information on the science behind BruxZir Solid Zirconia's more lifelike results,
REPORT EXCERPT: BruxZir (Glidewell Laboratories) and milled e.maxCAD (Ivoclar Vivadent) attracted attention of TRAC Research scientists because they are the first of over 100 posterior tooth-colored restoratives tested here clinically over the past 35 years that showed NO cracks, chips, breaks, wear, or staining after their first year of service.
Practice-based controlled clinical tests of tooth-colored restoratives began in this lab in 1976, when the demise of metal in dentistry began to be discussed seriously. The goal was to identify the most promising alternatives. The same test protocol has been used throughout, allowing comparative analyses as restorations age in service. At one year, BruxZir and milled e.maxCAD show superior performance.
SOURCE: An independent, non-profit, dental education and product testing foundation, Clinicians Report®, June, 2012. For the full report, click here.
To view a list of Authorized BruxZir laboratories, please visit www.bruxzir.com.