IPS e.max®

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IPS e.max combines high esthetic vitality with high performance. This innovative lithium disilicate ceramic fulfills the highest esthetic demands and unites state-of-the-art technology with exceptional user friendliness.

IPS e.max is a lithium disilicate glass ceramic with optimized translucency, durability and strength for full anatomical restorations. IPS e.max is available as a pressed and as a CAD/CAM milled technology. DAL presses all IPS e.max for maximum strength (400 MPa’s) and maximum margin refinement. Available in full contour monolithic or cut back and multi-layered, IPS e.max lithium disilicate ceramic is our choice for single anterior/posterior crowns, 3-unit anterior bridges (bicuspid forward), veneers and inlay/onlays as it truly mimics the light refraction and natural translucency necessary for outstanding esthetic appearance. With two times the strength of the original IPS Empress and the maximum benefits of a monolithic structure, IPS e.max is the material of choice for minimally invasive esthetic dentistry.

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Monolithic Structure/Strength

When fabricated to full-contour or in a monolithic state, IPS e.max is the most robust ceramic system tested to date.* Even with micro-layering, this system eliminates the typical chipping and fracturing found in traditional veneered restorations. Failures in zirconia and PFM veneered restorations oftentimes are the result of a very weak 90 MPa porcelain material having chewing forces exerted upon it. The 1,000 MPa zirconia or metal substructure remains intact but the failure of the layering porcelain is ultimately a failure of the restoration. With monolithic lithium disilicate, the work of mastication is being done on a 360-400 MPa material so the strength is homogenous throughout the entire restoration.

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Material Properties/Indications

IPS e.max Monolithic – flexural strength of 360 MPa’s, indicated for single anterior/posterior crowns and inlays/onlays

IPS e.max Press – flexural strength of 400 MPa’s, indicated for single anterior/posterior crowns, 3-unit anterior bridgework (bicuspid forward), inlays/onlays and ultra-thin veneers

Contraindications

Not recommended with a feather edge preparation, as it does not provide adequate room for porcelain build-up, or the trough/“gutter” shoulder because of scanning error potential

Cementation

Traditional cementation or adhesive bonding

Preparation Guidelines

The recommended preparation guidelines for IPS e.max lithium disilicate are similar to other restorative systems. A 1.0 mm rounded shoulder or chamfer margin with rounded line angles, facial reduction of 1.5-2.0 mm, 1.0-1.5 mm lingual contact clearance and standard reduction of 1.5 to 2.0 mm for occlusal surfaces is the norm. For more preparation guidelines, please refer to our IPS e.max Prep Guide.

For complete information, please refer to our IPS e.max Tech Sheet. Plus, visit www.emaxChangesEverything.com for testimonials, clinical cases, a durability study, and an interactive presentation.

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IPS e.max is a registered trademark of Ivoclar Vivadent Inc.

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