e.Max

 May 14, 2019

is a lithium disilicate glass-ceramic that is digitally fabricated through the use of CAD/CAM technology. With pricing comparable to a non-precious PFM and the ability to conventionally cement in posterior or anterior regions, you simply cannot go wrong by prescribing this material. Please remember to take a stump shade in addition to the final crown shade- lithium disilicate is translucent and unable to block out the two darkest stump shades.

Turnaround Time - 4 Days

Required Case Material
  • Upper and lower impressions or models
  • Bite Registration
  • Tooth shade
  • Stump shade
Advantages
  • The standard for anterior esthetics
  • 4 day in-lab turnaround
  • Save $10 per unit by using an intra-oral scanner and model-less technique
  • Conventionally cement or bond using a full resin
Indications
  • Anterior & Posterior Crowns
  • Anterior 3 unit bridges
  • Screw-Retained Crowns
  • Crowns over Custom Abutments
  • Inlays & Onlays
  • Veneers
Contraindications
  • Do not use on patients with malfunctional occlusion (bruxzers or clenchers)
  • Not recommended for posterior bridges
  • Do not use as abutments for cast partials
  • Do not use for 2 or more consecutive pontics
  • Do not use for Maryland-type bridges
  • Do not use when minimal occlusal clearances cannot be achieved: 0.7mm anterior, 1.0mm posterior
  • Underlying prep stump shade extremely dark or cast posts. E.max cannot block out these darker underlying stump shades. In these cases a zirconia coping is needed for block out, or a PFM.
Materials
  • Lithium Disilicate Glass Ceramic (400 MPa)
Suggested Preparation
  • Anterior crowns require a CHAMFER margin:
    • 1.0-1.5 mm facial/labial reduction
    • 1.0 mm deep chamfer margin
    • .07-1.2 mm lingual reduction
  • Veneers require a CHAMFER margin
    • 0.3-1.0mm facial/labial reduction
    • 0.3-0.7 mm deep chamfer margin
  • Posterior crowns require a CHAMFER margin:
    • 1.0-1.5 mm occlusal reduction
    • 1.5 mm axial
    • 1.0 mm deep chamfer margin
Recommended Cementation
  • Resin Self Etch/ Self Adhesive Resin (crowns and bridges NOT veneers)
  • Panavia SA Cement, Kuraray
  • Rely-x Unicem Automix 2, 3M ESPEMax Cem Elite, Kerr
  • RMGI (Resin Modified Glass Ionomer) (crowns and bridges NOT veneers)
  • Fugi Cem Automix, GC America
  • Rely-x Luting Plus, 3M ESPE
  • Resin Bonding (Veneers)
  • Panavia V5 Cement, Kuraray
  • Variolink II, Ivoclar Vivadent
  • Rely-x Veneer, 3M ESPE
  • Calibra, Dentsply Caulk
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