The Lava™ All-Ceramic System from 3M ESPE encompasses a CAD/CAM procedure for the creation of all-ceramic crowns and bridges for anterior and posterior applications. The framework ceramic consists of zirconia with a specially designed overlying veneer ceramic. The frameworks are made using CAD/CAM procedures (scanning, computer-aided framework design and milling) from pre-sintered zirconia blanks. The system produces high-strength restorations with excellent fit. The size of the final restoration has been increased to compensate for shrinkage during sintering.
Benefits
Considerations
Lava™ Classic Zirconia Frame |
Lava™ Plus Zirconia Frame |
Lava™ Ultimate CAD/CAM Restorative (Hybrid Ceramic) |
|
Material | Veneered zirconia | Monolithic | Resin nano ceramic 80% wt nano ceramic and 20% wt resin |
Aesthetics | ✓ ✓ ✓ | ✓ ✓ | ✓ ✓ ✓ |
Durability | ✓ ✓ ✓ | ✓ ✓ ✓ ✓ ✓ | ✓ ✓ |
Margins | Shoulder/heavy chamfer (0.5-1.0 mm) |
Shoulder/Chamfer (0.3-0.5 mm) |
Shoulder/Chamfer |
Flexural strength | 90 MPa (porcelain) 1200 MPa (substructure) |
1200 MPa | 200 MPa |
Indications | Crowns Inlays/Onlays (limited) Bridges |
Full crowns 3-4 unit bridges Long-span bridges Curved bridges (up to 48 mm) |
Inlays/Onlays Veneers “Cushion effect” |
Colour | 8 framework shades | 12 shades | 8 shades 2 translucencies |
Bonding | N/A | N/A | Bonded to tooth with adhesive resin cement. *Scotchbond™ Universal Adhesive (3M ESPE) *RelyX™ Ultimate Adhesive Resin Cement |
Stain resistance | ✓ ✓ ✓ ✓ ✓ | ✓ ✓ ✓ ✓ ✓ | ✓ ✓ ✓ |
Span/ingot size | Full arch possible | 4 units (anterior) 3 units (posterior) |
Limited |