IPS e.max®
IPS e.max® is available from Peak Dental for cases that require high esthetics from an all-ceramic restoration. This lithium disilicate can be fabricated by our team as a full-contour monolithic using both HT and LT CAD/CAM blocks. IPS e.max® is an innovative glass-ceramic that contains additional impulse ingots that allow for increased flexibility and reduced fractures. It also features up 2.5 to 3 times more strength than its alternatives. Peak is proud to offer IPS e.max® as it is a trustworthy restorative solution for a wide range of indications.
Features:
- Up to 500 MPa
- Manufactured utilizing CAD/CAM precision
- Fracture-Resistant
Indications
IPS e.max is the premium lithium disilicate, glass-ceramic restoration. Combining lifelike materials and fracture resistant properties, IPS e.max is as durable as it is lifelike. The flexibility of IPS e.max makes it an excellent restorative method for anterior esthetics or posterior function.
Contraindications
Bridges which include molars, Maryland style bridges, and bridges which have a short vertical height that does not allow for adequate connector height.
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 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.
Tech Notes
If adjustments are needed, use fine diamonds with water and light pressure. Always remove the crown when adjusting or bond/cement crown before adjustments are made.).
ADA Insurance 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)