LAVA Crowns

Finally, the strength you’ve been looking for in an esthetic metal-free restoration is possible with Lava™, the new zirconia-based all-ceramic system by 3MTM ESPETM. The Lava Crown system combines CAD/CAM technology with an extraordinarily translucent zirconia framework that can be custom colored creating a restoration strong enough for long span bridges, with outstanding fit and biocompatibility and the esthetics your patients have come to expect. Now you can have it all!

Zirconium oxide coping provides exceptional strength.

• Polycrystalline zirconium oxide stabilized with yttrium actually inhibits fractures.
• Withstands stresses much greater than those occuring in the mouth.
• Ideal for 3 and 4 unit bridges.

Excellent esthetics

• The Y-TZP infrastructure is more translucent than other zirconia-based materials.
• 8 shades of zirconia framework for natural shade matching.
• Better ability to mask discolored abutment teeth, metal cores and metal implant abutments.

Outstanding Marginal Fit - the sophisticated production process of the pre-sintered blanks ensures precise fit.

Biocompatibility

• No allergy potential or irritation of tissue.
• Low thermal conductivity provides greater comfort for your patient.

Preparation similar to PFM - less tooth reduction than most all-ceramic systems.

Conventional Cementation - easily accomplished with proven techniques.

Indications

• All Crowns.
• Crowns over Implants.
• 3 and 4 Unit Bridges with total lengths up to 36mm.

Contraindications

• Inlays and Onlays.
• Veneers.

Send Keller

• Upper and Lower Impressions.
• Bite Registration (bite registration for bridges should cover pontic and 2 adjacent teeth on either side).
• Shade Choice.

Shade Guide

• All Crowns.
• We recommend the Ivoclar Chromoscop shade guide.
• Use Vita, Bioform or other shade guides if necessary.

Ideal Preparation

• 1mm chamfer margin
• 1.5mm axial wall reduction
• 2mm incisal/occlusal reduction required.
• No Knife-edge margins
• As with any all-ceramic, no sharp or right angles.

Recommended Cements

Lava can be cemented using conventional PFM techniques. We recommend:

• Rely X Unicem from 3M ESPE (www.3MESPE.com)
• Panavia 21 from J. Morita. (www.jmoritausa.com)
• GC Fuji Glass Ionomer. (www.gcamerica.com)

Adjustment Tips

• Avoid internal adjustment of Lava Crowns.
• When adjustments are necessary, adjust prepped tooth.
• Use a diamond with water for ceramic adjustments of veneer porcelain.
• Avoid carbide use.