IPS e.max®
An ideal solution for restorations where cosmetics are essential, IPS e.max® crowns are fabricated from a pressed lithium disilicate with the translucency and shading that rival the esthetics of natural teeth. With a higher flexural strength than traditional porcelain, e.max’s metal-free restorations provide strength and durability.
It is the affordable, and outstanding metal free alternative to PFMs, being offered by dental labs. ips e max bridge & crowns has the best esthetics, and world-class marginal accuracy. The unique lithium disilicate framework adds more strength of 360 MPa for single unit anterior or posterior crown, and 3- unit anterior bridges. The cementing can be done by lower expanding of glass ionomer cements, or by bonding with resin cements as per the indications. IPS e. max has been prescribed to attain maximum esthetics, with virtually perfect occlusion, and contacts that it has. The impressive strength provided is supreme.
We anticipate to work with you in future, to get you availed these first-class solutions that would be loved by your patients.
A look on the Indications
The indications of IPS e.max dental crowns & bridge have been done, keeping in mind complete anterior or posterior crowns, along with the presence of 3- unit bridges, having the most distal abutment in just one pontic with second bicuspid. The computer aided design process indicates absolute anterior or the posterior crowns. The recommendation of Emax Veneers is advised in the case when it has to be combined with the adjacent IPS e.max crown or bridges. Another condition is the achievement of sufficient amount of reduction, as it could lead to indication of original IPS e.max CAD or IPS empress for onlays, Emax veneers and inlays.Contradictions involved
It should not be used for Maryland type bridges, or in the cases when appropriate preparation requirement cannot be achieved. The application of ips e max crowns & bridge for abutments of cast partials should be avoided. The patients with fault occlusion like clenchers or bruxers should not be allowed for the product.Preparation
Cementation
Tech Notes
Codes
Preparation
The need for a shoulder margin or a chamfer is must for anterior full coverage crowns. The width of chamfer has to be near to 1 mm, with being circular and having inner edges at an angle 10-30o, the lingual contact clearance area should be 1-1.5 mm, having facial reductions of 1.5 to 2 mm. The line angles in interior of the structure should be rounded with reduction of 1.5 to 2 mm. To permit the appropriate milling of incisal edge, it should be allowed a minimum width of 1 mm, to facilitate CAD/CAM handling.
Cementation
The use of reliable adhesive bonds is necessary for better strength, and accommodation for a dry field after preparation. The bonds could be VarioLinkII, Kerr, Pentron, or Insure.
For the areas where achievement of a dry field is difficult, the ionomer glass systems with less than 0.5 percent expansion, recommended by IvoclarVivadent should be used. The application of glass ionomers with resin enforcements in them, must be avoided for any type of ceramic restoration process.
Vivaglass (Ivoclar Vivadent)
GC Fuji (GC America)
Ketec Cem (3M ESPE)
Panavia F (J. Morita)
C&B Metabond
Variolink (Ivoclar Vivadent)
Tech Notes
To shape the crown, use polish with porcelain polishing wheel such as Vident, along with the diamond polishing paste. To allow the space for adjustments over the ceramic, must focus to cement and bonding into appropriate place before the proceedings. The usage of fine diamond with some water is good to keep crown cool. There must not be any attempt to fire the porcelain. The return of crown to the lab is best for re-glaze firing. IPS e.max require precisely calibrated ovens, and some specific stains or glaze. The oven requires precise vacuum and temperature settings to operate for best results.
Codes
D2740 Crown
D2610 Inlay for 1 surface
D2620 Inlay for 2 surfaces
D2630 Inlay for 3 surfaces
D2962 Labial Veneer
D2783 Crown 3/4 Porcelain Ceramic (does not include veneers)
