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Van Thompson DDS Petra Guess IPS e.max CAD Lithium Disilicate Study.

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Presentation on theme: "Van Thompson DDS Petra Guess IPS e.max CAD Lithium Disilicate Study."— Presentation transcript:

1 Van Thompson DDS Petra Guess IPS e.max CAD Lithium Disilicate Study

2 Single crowns made of IPS e.max lithium disilicate can be… 3X STRONGER than a Zirconia single unit crowns!

3 Buccal Lingual cusp loaded increasing cyclical load every 10k cycles until failure Bottom Radial Crack

4 Fatigue Zirconia supported / Press-on 300 N 50 K 200 N 40 K Load

5 Fatigue IPS e.max CAD Lithium Disilicate Survivor at 900 N and 180 K cycles (profile I)

6 Only superficial damage at load surface

7 No Cracks - only superficial surface damage Specimens were tested up to 900 N of force with 180,000 cycles and no cusp shearing ! No Cracks - only superficial surface damage Specimens were tested up to 900 N of force with 180,000 cycles and no cusp shearing ! IPS e.max CAD Lithium Disilicate Biaxial mouth motion step stress fatigue

8 Survival of test materials based on Load and Number of Cycles

9 This is by far the most robust system we have tested to date Van Thompson DDS IPS e.max CAD Lithium Disilicate

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