emax

IPS Emax


 

IPS e.max® is made of monolithic lithium disilicate ceramic and delivers outstanding esthetics and precision fit. An affordable alternative to PFMs and zirconia-based restorations, IPS e.max can be pressed or milled.

Prescribe IPS e.max to achieve optimal esthetics, virtually perfect contacts and occlusion, and impressive strength. Its unique lithium disilicate ceramic provides flexural strength of 360-400 MPa, making it the ideal high-strength solution for single-unit anterior or posterior crowns, veneers, inlays, and onlays with minimum preparation dimensions.

Conventionally cement using resin ionomer cements or bond for maximum retention on nonretentive preparations. Lithium disilicate ceramic is biocompatible and provides more than double the flexural strength of IPS Empress® Esthetic.

More Information

IPS e.max CAD is indicated for full anterior or posterior crowns. IPS e.max press is indicated for full anterior or posterior crowns and three-unit bridges having only one pontic with the second bicuspid as the most distal abutment. Veneers can also be indicated and are recommended when combining with adjacent IPS e.max crowns or bridges, provided ample reduction is achieved. Otherwise, original IPS Empress or IPS e.max CAD would be indicated for veneers, inlays and onlays.

IPS e.max should not be used on patients with malfunctional occlusion such as bruxers or clenchers. IPS e.max should not be used as abutments for cast partials. IPS e.max should not be used in situations when preparation requirements cannot be achieved. IPS e.max is not indicated for Maryland-type bridges.

Anterior full-coverage crowns require a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Facial reduction is 1.5 – 2 mm; 1 – 1.5 mm lingual contact clearance. Incisal reduction is 1.5 – 2 mm with rounded internal line angles, and an incisal edge at least 1mm wide to permit optimum milling of the incisal edge during CAD/CAM processing.

Posterior full-coverage crown requires a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Occlusal reduction is 1.5 – 2 mm: axial reduction (buccal, lingual and interproximal) is 1.5 mm with rounded internal line angles.

For greatest strength, and where preparation allows for dry field (supra-gingiva margins), it is recommended to use adhesive bonding, such as VarioLink II (Ivoclar Vivadent) or similar dual cure materials (Insure, Cosmedent; Nexus, Kerr; Choice, Bisco, Inc.; Lute-It, Pentron).

For areas subgingival, or when a dry field cannot be achieved, Ivoclar Vivadent recommends a hybrid glass ionomer cement system with less than 0.5 percent expansion. (NOTE: Resin-reinforced glass ionomers (Advance, Vitremer) are not indicated for any all-ceramic restoration.)

Below is a list of recommended resin cements:

Vivaglass (Ivoclar Vivadent)

GC Fuji (GC America)

Ketec Cem (3M ESPE)

Panavia F (J. Morita)

C&B Metabond

Variolink (Ivoclar Vivadent)

D2740 Crown

D2610 Inlay for 1 surface

D2620 Inlay for 2 surfaces

D2630 Inlay for 3 surfaces

D2962 Labial Veneer

D2783 Crown 3/4 Porcelain Ceramic (does not include veneers)

D6245 Pontic Porcelain/Ceramic

Prep Guide

Scientific Data

Clinical Study