IPS Empress is ideal for maximizing the esthetics of crowns, veneers, inlays and onlays. The use of traditional lost wax techniques and the IPS Empress pressing procedure results in outstanding marginal accuracy. With no metal substructure or core material, the light refraction and reflection of IPS Empress more closely mimic that of natural tooth structure.
This esthetic restoration is built on a coping composed of zirconium oxide, one of the strongest and most biocompatible ceramic materials. After being milled using CAD/CAM technology, the final restoration achieves superb intimacy of fit and beautiful, translucent pearlescence.
Prismatik CZ is indicated for individual crowns, splinted crowns and bridges up to 14 units anywhere in the mouth. Conventionally cement with resin ionomers.
Prismatik Clinical Zirconia is indicated for anterior or posterior crowns and multiple-unit bridges.
BENEFITS FOR THE PATIENT
Medical grade zirconia is completely biocompatible, and its metal-free substructure allows for beautiful esthetics. Flexural strength of the Prismatik CZ is >1200 MPa.
Anterior full-coverage crowns require a chamfer with 1.5 mm facial reduction, 1.5 mm lingual contact clearance, 1.5 mm incisal reduction 1.25 mm reduction at the gingival margin with rounded internal line angles; or a shoulder with 1.0 mm lingual reduction, 2.0 mm incisal reduction, 1.5 mm labial reduction, 1.0mm 360 degree rounded shoulder.
Posterior full-coverage crowns require a chamfer margin with 2.0 mm occlusal reduction, 1.5 mm buccal and lingual reduction with rounded internal line angles; or a shoulder with 2.0 mm occlusal reduction, 1.5 mm buccal and lingual reduction and 1.25 mm gingival margin reduction with rounded internal line angles. Chamfer Margins — Correct preparation of the chamfer margins interproximally allows the appropriate bulk of porcelain.
Glass ionomer cement (GC Fuji, GC America)
Resin Ionomer cement (RelyX, 3M ESPE)
The world of Cad-Cam and digital dentistry has changed and improved dramatically in the last few years. KIM'S DENTAL LAB has invested heavily in this new digital market and has taken time to study these advancements in the dental Industry.
In their study paper, the researchers note that implant developers are increasingly using materials with rough surfaces because they enlarge the contact area - thus improving anchorage with bone cells and integration into the bone. However, greater surface area also raises the risk of biofilm development.