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e.max CAD versus e.max Press – A Comparisone.max CAD versus e.max Press – A ComparisonIntroductionLithium disilicate is one of the most popular and most prescribed materials for dental restorations. IPS e.max by Ivoclar is a common type of lithium disilicate and will be the main focus of this white paper. This high strength, glass ceramic offers some of the strongest and most esthetic restorations available today. The majority of dental lab technicians believe that wet grinding this material is the best way to produce e.max restorations. Thus, labs looking to enter the digital dental market often look for dental mills that provide a wet option. As we will point out in this whitepaper, the belief that e.max restorations must be wet milled is a false and costly one.White Paper
White Paper - Page 2e.max CAD versus e.max Press – A ComparisonOpportunity For Labs With Dry Mills OnlyRoland’s current product offering includes two dry mills. The DWX series offers a flexible and open architecture solution which allows dental laboratories to choose from a variety of materials, including wax, zirconia, PMMA, VITA ENAMIC® hybrid ceramic and 3M™ ESPE™ Lava™ Ultimate CAD/CAM Restorative nano ceramic resin. Laboratories researching mills sometime believe that wet grinding and dry milling are an interchangeable option with little or no preparation needed. It is true that there are machines that can be used as both a wet and dry solution; however the changeover between the two does not come easily or quickly. Europe, US, China and Japan iData Research 2012Most labs do not have an unlimited equipment budget and may only be able to afford one type of mill. Although wet milling is an option that many would like to have, sometimes the amount of actual business that would require the use of a wet mill on a regular basis will not outweigh the cost. With materials like zirconia, and PFM’s (porcelain fused on metals) still being so popular in the dental lab business, dry milling of zirconia and wax is still responsible for the majority of restorations being done in dental labs today. With the price of precious metals going up over the last few years, zirconia has begun to take some of the PFM market away and is now the most popular material being milled on Roland mills today. The use of hybrid ceramics is growing rapidly. Nevertheless, some dentists may continue to prescribe e.max restorations, causing labs without an e.max solution to worry that they will lose a customer.