By now you’ve likely heard about IPS e.max® Lithium Disilicate crowns. More and more dental practices throughout the country are choosing e.max for their fixed restoration needs. IPS e.max may not have the lengthy track records of some PFMs, but doctors and laboratories have found e.max offers the reliability of more traditional restorations with better esthetics and fewer fractures.
Research from NYU College of Dentistry, and impressive clinical results tell a compelling story of improved strength, esthetics and fit. According to an NYU study, e.max is the most robust all-ceramic material to date. The tests were led by NYU researcher Dr. Van Thompson. Crown specimens in the NYU study were subjected to mouth-motion cyclic fatigue testing which is able to mimic the forces found while chewing. Dr. Thompson has tested many materials during his 30 years in biomaterials research including PFM’s, zirconia, and IPS Empress.
The weak link in most full coverage porcelain crowns is not the strength of the coping, but rather the porcelain layered on top to give the restoration esthetic appeal, like porcelain-fused-to-metal crowns (PFM’s) and porcelain-to-zirconia crowns. In some cases, that porcelain can chip or fracture away from the substructure and ultimately cause the failure of the restoration. Monolithic e.max lithium disilicate has no such weakness. IPS e.max is extremely versatile and works great in the anterior or the posterior and can be cemented or bonded.
Give e.max a try and find out why so many doctors around the country have begun using it in their practice.