The Results are In
The clinical performance of hardly any other dental material has been as thoroughly documented as that of IPS e.max. The November 2018 Independent Clinicians Report (Volume 11, Issue 11), an independent, non-profit, dental education and product testing foundation, confirms a high survival rate of 95 percent for IPS e.max CAD in 8 years.
We've highlighted several of the key takeaways from the report, indicating the long term success of using IPS e.max lithium disillicate, cementation success with IPS e.max, and the low rates of wear on opposing dentition. See the results below.
Low Cementation Failure
Current cementation technology is focused on bonding glass-based materials to tooth structure. Zirconia products, which contain no glass, are more challenging to adhere to the tooth and show an increased rate of cementation failure. Ceramic-polymers which are largely resin-based, also experience issues with staying on the tooth because of the rate at which they flex and the bonding technology. When you need to ensure that a material reliably stays in place, proper bonding procedures with IPS e.max CAD lithium disilicate is unmatched. For the best results, we recommend following the Ivoclar Vivadent cementation procedures for cementing IPS e.max.
Kind to Opposing Dentition
Wear is an important factor to consider when selecting a material. The CR study shows that while zirconia products have very high durability, they can also be detrimental to the opposing natural dentition. This is not the case for ceramic-polymer materials due to their high resin content nor do we see high wear rates with IPS e.max CAD lithium disilicate. The properties of lithium disilicate are very similar to natural enamel, thus the material exhibits a harmonious relationship with actual teeth.