ZirCast and Z-Sthetic
Full-contour or substructures, Drake?s zirconia restoration offerings provide strength and esthetics.
Formally, it?s zirconium dioxide. Chemically, it?s expressed ZrO2. Now ubiquitous in dentistry, it?s zirconia.
Drake Precision Dental Laboratory offers a variety of options for zirconia restorations, including ZirCast solid zirconia crowns and Z-Sthetic restorations, both produced using state-of-the-art CAD/CAM design and fabrication techniques. Both metal-free options provide the benefi ts of biocompatibility, no galvanic sensitivity, and high strength.
ZirCast solid zirconia crowns are monolithic, strong, durable, and esthetic alternatives to PFMs in the posterior. Recommended especially for bruxers and grinders, ZirCast solid zirconia crowns are highly glazed and polished to an ultrafi ne fi nish. This smooth finish discourages plaque buildup and minimizes the risk of wear to opposing dentition.*
For chairside convenience, ZirCast solid zirconia crowns require conservative preparations as thin as 1 mm, utilizing a light chamfer preparation. Shades can be selected using Vident?s VITA Classical Shade Guide or Ivoclar Vivadent?s Chromascop Shade Guide. Additionally, ZirCast solid zirconia crowns can be cemented using conventional or adhesive techniques.
Drake covers its ZirCast solid zirconia crowns with a 7-year replacement warranty?the laboratory?s longest warranty offered on any of its products. Recently, Drake began offering its latest product, ZirCast Select, featuring cutbacks for veneered porcelain to enhance esthetics.
Optimal for the esthetic zone, Z-Sthetic restorations are in dicated for single or splinted crowns in any anterior and posterior position as well as full arches. Drake has produced more than 30,000 Z-Sthetic restorations with Zeno Zirconia shaded substructures and highly esthetic veneered porcelain. The lifelike esthetics and function are considered comparable to PFMs?without the risk of a gingival ?black line.?
Similarly to ZirCast, Z-Sthetic restorations accommodate traditional preparation techniques. Shoulder or chamfer preparations are recommended for optimal vitality, particularly in the esthetic zone; they should have polished or rounded external line angles to minimize stress and potential fracture. Additionally, the recommended ideal clearance is 1.5 mm in the anterior and 2.0 mm in the posterior.
ZirCast and Z-Sthetic restorations, along with Drake?s entire portfolio of products, are subject to rigourous quality control standards because Drake is among a small group of US dental laboratories accredited under the National Association of Dental Labratories? Dental Appliance Manufacturers Audit System (DAMAS). One of only about 30 US laboratories with DAMAS accreditation, Drake follows specifi c manufacturing and documentation guidelines to ensure that ZirCast and Z-Sthetic zirconia restorations deliver promised quality of fit, function, esthetics, and durability.
*J Prosthet Dent. 2013 Jan;109(1):22-9. doi: 10.1016/S0022-3913(13)60005-0. The wear of polished and glazed zirconia against enamel. Janyavula S, Lawson N, Cakir D, Beck P, Ramp LC, Burgess JO. Source: Department of Prosthodontics, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA.