IPS e.max: Tested and Proven in Practice

Author : Dental Product Shopper
Published Date 12/04/2012
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I have been providing IPS e.max restorations for more than 10 years. IPS e.max lithium disilicate glass ceramic is patented by Ivoclar Vivadent and incorporates features beyond earlier lithium disilicates. IPS e.max has excellent translucency and light diffusion for natural esthetics.

I have been providing IPS e.max restorations for more than 10 years. Although I am not a materials science expert, I keep up on the continual testing done by both Ivoclar Vivadent and independent researchers on lithium disilicate, on which IPS e.max is based. There?s a decade of research, and IPS e.max materials are among the most tested in the industry.

Proprietary Formulation

Here?s what I do know. IPS e.max lithium disilicate glass ceramic is patented by Ivoclar Vivadent and incorporates features beyond earlier lithium disilicates. IPS e.max has excellent translucency and light diffusion for natural esthetics. Additionally, it is durable?flexural strength is 360 MPa for the CAD version and 400 MPa for the Press version. One interesting trend I learned from the database of IPS e.max studies is that restorations can be seated with either conventional or adhesive cementation with equal success. That?s a plus for me in terms of ease of use.

Part of Everyday Dentistry?

I have a general adult practice with a typical patient base. Crown-and-bridge is somewhere between 40% and 50% of my total caseload. I do an average of 30 IPS e.max cases per month?most being single-tooth posterior restorations, not including my larger cases. In the years I have been providing IPS e.max restorations, I have had virtually no failures and have found the strength to be outstanding. Well under 1% of IPS e.max cases come back with any type of porcelain chipping, and even in those circumstances, it is difficult to tell if patient habits or other factors contributed to the fracture. ?and Clinical Challenges I have had interesting cases where IPS e.max offered an excellent result when other materials would not have been as effective. Recently, I had a patient whose treatment involved a conservative preparation, with minimal- to-no removal of enamel, that required a change in tooth color. We all know it?s difficult to lighten a tooth with thin feldspathic veneer. IPS e.max has greater potential to deliver a change in color at the same thickness. In another case, reconstruction involved a combination of veneers, crowns, and implants. With IPS e.max, the ceramist was able to create implant abutments with the exact same shade as the tooth preparations, allowing for a predictable final ceramic crown color.

Patient Benefits

Strength and longevity are the hallmarks of lithium disilicate. IPS e.max is the only material I prescribe for singleunit posteriors. That said, the esthetics are beautiful. Ivoclar Vivadent offers a range of ingot colors that can be very translucent; with a talented ceramist, they can mimic natural teeth in color. Additionally, IPS e.max offers a great option for all-ceramic implant restorations. For example, zirconium is only 1 color, while lithium disilicate offers multiple color options for custom abutments.

Something for Everyone

While I provide laboratory-fabricated restorations with IPS e.max Press, there?s also a lithium disilicate version for dentists who use Sirona?s CEREC or D4D?s E4D systems in their offices: IPS e-max CAD. Both versions come in different translucencies and sizes as well as in Impulse ingots/blocks, with 3 value and 2 opal shades.

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