IPS Empress® has more than 20 years of proven experience in the business of metal-free restorations. Prescribe IPS Empress to maximize the esthetics of crowns veneers, inlays and onlays. IPS Empress can be stained, cut back or layered with IPS Empress Esthetic powders, which allow for increased esthetics, strength and cost effectiveness. What's more, with no metal substructure or core material, the light refraction and reflection of IPS Empress more closely mimic that of natural tooth structure.
IPS Empress CAD Multi is an ideal supplemental solution to the IPS system, as it offers smooth color transition and highly esthetic, natural results. The lifelike opacity of IPS Empress CAD Multi allows you to prescribe restorations that offer efficiency and esthetics for an economical price.
Anterior full-coverage crowns require a chamfer with 1.5-2.0 mm facial reduction, 1.0-1.5 mm lingual contact clearance, 1.5-2.0 mm incisal reduction 1.0-1.5 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, 1.0 mm 360 degree rounded shoulder.
Posterior full-coverage crowns require a chamfer margin with 1.5-2.0 mm occlusal reduction, 1.5 mm buccal and lingual reduction with rounded internal line angles; or a shoulder with 1.5-2.0 mm occlusal reduction, 1.5 mm buccal and lingual reduction and 1.0-1.5 mm gingival margin reduction with rounded internal line angles.
Inlays and onlays require 1.5-2.0 mm isthmus width, 1.0-1.5 mm wide gingival floor with rounded internal line angles and butt joint margins.
Veneers require a uniform preparation and lingual reduction to increase strength. A medium-grit round-ended diamond is used to join the depth cut grooves to establish a uniform preparation and porcelain thickness of at least 1.0 mm. The diamond is angled to eliminate undercuts and establish a butt joint on the lingual aspect of the preparation. The incisal edge should be rounded to eliminate sharp line angles.
Chamfer Margins – Correct preparation of the chamfer margins interproximally allows the appropriate bulk of porcelain.
Slice Preparation – This technique enables the ceramist to close the space and avoid unnatural lingual contours.
Adhesive bonding/dual cure materials including: