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IPS E.Max

IPS E.Max is a lithium silicate glass-ceramic uniquely designed for the manufacturing of one-piece, full contour metal-free restorations. It is manufactured with an innovative process, resulting in the exceptional homogeneity of the material. IPS E.Max demonstrates the benefits of an all-ceramic restoration with the added flexibility of using adhesive bonding or cementation. It can be fabricated on either chamfer or shoulder tooth preparations. And because IPS E.Max is not layered with porcelain, the risk of porcelain fracture is reduced relative to other glass ceramic materials.

STRENGTH: 500 MPa


PATIENT BENEFITS

  • IPS E.Max has the highest aesthetics for the most natural looking teeth

  • Versatile applications and extensive indication range


PREPARATION

Anterior full-coverage crowns require a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Facial reduction is 1.5 – 2 mm; 1 – 1.5 mm lingual contact clearance. Incisal reduction is 1.5 – 2 mm with rounded internal line angles, and an incisal edge at least 1mm wide to permit optimum milling of the incisal edge during CAD/CAM processing. Posterior full-coverage crown requires a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Occlusal reduction is 1.5 – 2 mm: axial reduction (buccal, lingual and interproximal) is 1.5 mm with rounded internal line angles.

CEMENTATION

IPS E.Max layered – can be either cemented using a resin reinforced glass ionimer such as Relyx Luting cement. Or bonded using a resin cement, when extra strength is needed due to lack of retention on the prep, use a resin cement such as Relyx Unicem or Relyx Ultimate.

ADA 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)

  • D6245 Pontic Porcelain Ceramic