IPS e.max® Press Overview

Lithium Disilicate Restorations

IPS e.max® Press 

Hand pressed from lithium disilicate ingots from your choice of investment materials – IPS PressVEST® and IPS PressVEST Speed® – IPS e.max® Press provides 400 MPa strengths with translucency that made it the go-to esthetic restoration for many doctors for more than a decade. Available in all 16 A-D Vita® shades and four Bleach BL shades, IPS e.max press is suitable for nearly every indication. Because Keating Dental Arts offers staining, cut-back or layering, you’ll receive the finish of your choice.

IPS e.max® Press Videos

Indications

  • Anterior & Posterior Crowns
  • Anterior 3 unit bridges
  • Screw-Retained Crowns
  • Crowns over Custom Abutments
  • Inlays & Onlays
  • Veneers

Advantages

  • Excellent for anterior esthetics
  • Clinically proven lithium disilicate glass ceramic material
  • 5 day in-lab turnaround
  • Conventionally cement or bond using a full resin

Material

  • Lithium Disilicate Glass Ceramic (400 MPa)

Insurance Codes

  • D2740 Crown – Porcelain/Ceramic Substrate
  • D2610 Inlay – Porcelain/Ceramic – One Surface
  • D2620 Inlay – Porcelain/Ceramic – Two Surfaces
  • D2630 Inlay – Porcelain/Ceramic – Three or More Surfaces
  • D2642 Onlay – Porcelain/Ceramic – Two Surfaces
  • D2643 Onlay – Porcelain/Ceramic – Three Surfaces
  • D2644 Onlay – Porcelain/Ceramic – Four or More Surfaces
  • D2783 Crown – 3/4 Porcelain/Ceramic
  • D2962 Labial Veneer – (Porcelain Laminate) – Laboratory
  • D6245 Pontic – Porcelain/Ceramic

IPS e.max® Press Technical Specs

Available ingots

Multi ingots 

The innovative Multi ingots are available in selected Bleach BL and A–D shades. The material demonstrates a lifelike shade progression from the dentin to the incisal areas and therefore imparts monolithic restorations with a highly esthetic appearance. With these ingots, veneers and anterior, posterior and hybrid abutment crowns are fabricated quickly and efficiently. Ideally, these restorations only need to be glazed. If desired, however, they can be modified using the staining or cut-back technique. 

HT ingots

The high translucency ingots (HT) are suitable for the fabrication of minimally invasive full-contour restorations, such as inlays, onlays and veneers. The restorations are characterized with staining materials.

MT ingots 

The MT ingots are provided in the following shades: A1, A2, A3, B1, BL2, BL3 and BL4. These medium-translucency ingots are used in cases where a brighter material than HT and a more translucent material than LT is needed. Restorations made of the MT ingots are ideal for the staining and cut-back techniques.

LT ingots

Full-contour partial crowns and crowns are fabricated with the low translucency ingots (LT). In the anterior region in particular, the esthetic appearance of the restorations is maximized by employing the cut-back technique.

MO ingots

The medium opacity ingots (MO) are used to fabricate substructures for vital or slightly discolored teeth. They create an ideal basis for lifelike restorations completed with the layering technique.

HO ingots

In cases where the prepared tooth structure is discolored or titanium abutments are used, the HO ingots mask the dark background to achieve highly esthetic results.

Impulse ingots

The Impulse™ ingots are available in two different levels of brightness (Opal 1, Opal 2). The restorations produced with these ingots have exceptionally opalescent properties. Therefore, this material is ideal for producing (thin) veneers for light teeth, which require an opalescent effect.

IPS e.max® Press Resources

Clinical notes from Dr. Hornbrook:

Our next category is lithium disilicate and there’s really only one on the market and that’s E-Max and I think most of you are probably familiar with E-Max, again lithium disilicate. Flexural strength of this material is approximately 400 megapascals. As you can see, this is about four times stronger than the porcelain on a PFM, yet only about a third of the strength of our KDZ Bruxer. Now, our KDZ aesthetic, as I mentioned, is about 650, so a little less in strength of our KDZ aesthetic, which is our anterior monolithic or aesthetics monolithic zirconia and a third of that of our monolithic KDZ Bruxer.

Where I use E-Max is veneers, anterior crowns, and that includes pre-molars, I consider a pre-molar to be an anterior too, and posterior crowns with adequate occlusal clearance and I would say a minimum of 1 mm occlusal clearance. As I mentioned earlier with the KDZ Bruxer or the KDZ aesthetic, monolithic zirconia, we can go 0.5 mm. In some situations on second molars where the patient has a reduced inner arch distance, maybe a short clinical crown prep and we have minimal occlusal clearance, E-Max is contraindicated, in my opinion for that. That’s where a KDZ Bruxer or a KDZ aesthetic is ideal.

The other application for E-Max is anterior three-unit bridges. The pontic width, maximum, is 11 mm in the anterior, so that’s single pontic, and 9 mm in the posterior. That is a pre-molar. I have no problem going a bridge from 27 to 29 or 20 to 22 with E-Max, but as soon as we go and we replace a molar where the pontic width is greater than 9 mm, we’re going to switch to either PFM or a zirconium, either a substructure or monolithic. 

 

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