Objectives • • • •
Material and Features What's New Characterization Hands on – Shade & Stain – Polish
All-ceramic products
For CAD/CAM chairside application
Processing
Processing
• World’s leading All-Ceramic • High strength 40% leucite-glass ceramic (160 mPa) •Natural fluorescence • 3 Translucencies • IPS Empress CAD Multi
Leucite Reinforced Ceramic
Leucite Crystal
Leucite in glass matrix
•Glass ceramic condensed in a block form • Reinforced with leucite crystals • Crystals provide high strength and exceptional esthetics • Crystals reflect light naturally
I
Leucite Crystals
F e s n e t n
e c or
Leucite crystals stop crack propagation
X 1000
20 pm
#44 IPS Empress CAD
20 kV * IVOCLAR *
15 mm
Wear of Opposing Enamel 7 6
Vita Alpha
5
Duceram
Vita Mark II
Finesse
4
Procera
3
Enamel IPS Empress Layer
2
Empress CAD E2 Veneer
1
E2 Core
0
Wear of Enamel against Dental Ceramics. Sorensen, et al. J Dent Res. Vol 78, 1999 #909
Empress CAD wears opposing enamel like enamel
Natural Fluorescence
Natural Fluorescence
Low Translucency
High Translucency
Empress CAD LT
Empress CAD HT
• True fusion of color • Natural transition of shade, translucency, & fluorescence • High strength 40% leucite-glass ceramic (160 mPa) • A-D and Bleach shades
Multi Block
Empress CAD Multi
Multiple Blocks in One
Natural Shade Gradient
Empress CAD Multi
Triluxe Forte
Natural Fluorescence
Empress CAD Preparation
Etch the restoration with IPS Ceramic Etching Gel (5% hydroflouric acid) for 60 seconds before permanent insertion.
Hydrofluoric acid etch Do not sand blast Empress CAD. Sand blasting will weaken ceramic restorations.
Tip: Apply silane and allow to air dry.
Silanate the etched restoration with Monobond-S for 60 seconds.
Tip: Empress CAD must be adhesively bonded
Apply Multilink Automix directly into the silanated restoration. A/B Primer is applied to the tooth preparation.
Empress CAD Characterization Options
Multi
Cutback and Layer
Internal Characterization
Stain and Glaze
• About 80% of owners polish • About 20% will glaze or stain & glaze • Cut back and layer is not common • Internal characterization is minimal due to multi block
• IPS Empress Universal Shades & Stains • 9 A-D shades • 14 stain colors • External shading made easy • Shade/Stain application can be combined with glazing in one-step technique
Cutback and Layer
• IPS Empress Layering Materials • Variety of shades • Must be fired with a vacuum furnace
Internal characterization
• Tetric color resin tints placed inside restoration •Creates shine through • Fast, simple light cure application
OptraFine
®
• Diamond impregnated polishers and paste • Autoclavable for multiple uses • Designed for intra-oral and extra-oral use • Creates a high gloss luster • Finisher and polishers come in three different shapes reaching varying tooth anatomy
Glazing • • •
Seals the surface to prevent staining Provides natural looking surface gloss Increases strength of restoration
Glazed Crown
Natural Tooth
Polished Crown
Glazing • Use a honeycomb type tray with stainless steel pins or Object Fix
Pre-Set Programs 1. Select Program
2. Open furnace
3. Start program