Jean Chiha, CDT, shares his step-by-step process for fabricating a posterior, three-unit, implant-supported bridge using Noritake KATANA Multi-Layered (ML) Zirconia.
The challenging aspect of this case was that one of the implants was improperly placed between #7 and #8. Steve Lee explains how he made a screw-retained zirconia framework with pink gingiva tissue to recreate the lost gingiva and...
The exposed zirconia surfaces were not glazed, but rather diamond polished to create...See more a surface that would be kinder to opposing natural dentition. Studies indicate that highly polished zirconia wears opposing enamel less than enamel against enamel and that glazed zirconia wears more. Unpolished, rough zirconia wears most of all.* It's important to note that zirconia restorations must be repolished if any adjustment occurs chairside.
*Luangruangrong P, Cook NB, Sabrah AH, Hara AT, Bottino MC. Influence of Full-Contour Zirconia Surface Roughness on Wear of Glass-Ceramics. J Prosthodont. 2013 Jul 22. [Epub ahead of print].
Kim MJ, Oh SH, Kim JH, Ju SW, Seo DG, Jun SH, Ahn JS, Ryu JJ. Wear evaluation of the human enamel opposing different Y-TZP dental ceramics and other porcelains. J Dent. 2012 Nov;40(11):979-88. Epub 2012 Aug 11.
The IPS e.max restorations were pressed and stained on stumpf dies to match the color...See more of the Zenostar restorations. For the canines to be restored with Zenostar, it was necessary for the dark die color to closely match the preparation color. The new, more translucent zirconia materials do allow some effects from underlying color, so it was critical to evaluate this in the laboratory.
- 78% Don’t have the equipment, staff or expertise in house - 48% To offer a wider variety of restorations - 12% When they have too much work/to even out the workflow - 11% To test new products and restorative materials before making purchases - 7% When the lab is short staffed - 3% When our equipment is down/being repaired
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