IPS E.max Press Lithium Disilicatae is a very versatile material that we use for crowns, veneers, miminal or no-prep veneers, inlay/onlays, and small span bridges in both the anterior and posterior of the mouth. The Press technique has established itself as the state-of-the-art processing method over the past 25 years and it has become synonymous with esthetic and accurately fitting all-ceramic restorations.
The esthetic properties have been optimized with four levels of opacity for case planning in addition to the improved flexural strength of 400 MPa. We are recommending that these restorations be adhesively cemented in order to get the maximum strength.
Seating Recommendations: The high strength of IPS e.max lithium disilicate offers dentists a choice to adhesively bond or conventionally cement their restorations. We strongly recommend that these restorations be adhesively cemented in order to get the maximum strength.
The following cements help to maximize the performance and esthetics of IPS e.max restorations:
ADHESIVE RESIN CEMENTS
For maximum bond strengths and in situations where adequate retention is not possible in the prep design (e.g. veneers, inlays/onlays) adhesive cementation is recommended. There are no minimum requirements for adhesive cementation. Adhesive cementation will provide higher-immediate bond strengths and a better marginal seal.SELF-
ADHESIVE RESIN CEMENTS
Self-adhesive resin cements combine an easy conventional cementation technique, with the advantages of “resin luting-composite”; increased strength, low solubility, high-level radiopacity and light-cure capabilities. Due to the lower bond strengths offered by this category of cements, it is strongly recommended that self-adhesive resin cements only be utilized in situations where a conventional cement would normally be used; retentive prep design, high-strength restoration with adequate thickness and tight fit.