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Wiron  light The new non–precious PFM Alloy Dr. Ulrich Abend R & D Alloys

Wiron  light The new non–precious PFM Alloy Dr. Ulrich Abend R & D Alloys. What do we expect from dental alloys?. Function (mechanical properties, processing by dental technician) Esthetics Biological properties Bio compatible. Wiron  light.

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Wiron  light The new non–precious PFM Alloy Dr. Ulrich Abend R & D Alloys

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  1. Wiron light The new non–precious PFM Alloy Dr. Ulrich Abend R & D Alloys

  2. What do we expect from dental alloys? • Function (mechanical properties, processing by dental technician) • Esthetics • Biological properties • Bio compatible

  3. Wiron light Casting made simpleby excellent melting properties • easy recognition of the proper moment for casting • high fluidity of the melt: reliable filling of the mould • low casting temperature: 1350 °C • reduced preheating temperature: 800°C

  4. Wiron Light in Fornax T

  5. Wiron Light torche casting in Fundor T

  6. Wiron light • Easy finishing • by smooth surface after casting • low temperatures during casting guarantee little reaction with investment material • thin oxides with light colour • oxides are easy and fast to remove

  7. Wiron light • Reliable results • by outstanding mechanical properties • high strength allows production of delicate structures • CTE optimally adjusted: normal cooling, in general • excellent bond strength for many available ceramics • Light oxide for improved aesthetics after veneering

  8. Wiron light SUMMARY  Easy to castCasting temperature: 1350 °C / 2460 °F Preheating temperature: 800 °C / 1472 °F  Easy to grindLight coloured oxide For reliable resultsOutstanding strength Normal cooling -> www.bego.com

  9. Finesse Carmen VM 13 Noritake Creation Heraceram Carat d.Sign Veneered real C&B

  10. Corrosion behaviour of precious and non precious alloys

  11. Corrosion & bio compatibility • Corrosion is the key to the bio compatibility of alloys • Reactions occur only if ions are released into the body! • The higher the amount of released ions, the higher the risk of unwanted biological reactions

  12. Chromium content • Non precious alloys do not corrode because of passivation • Passivation: formation of mechanical and chemical stable chromium oxide layers • 20 % Chromium are necessary for stable layers!

  13. Non precious alloys (as casted) Layer formed of chromium oxide

  14. 5000 4283 4500 Ni67Cr14Mo8Ga7Fe5 Ni65Cr23Mo9,5 (Wiron 99) 4000 Ni61Cr26Mo11Fe1 3500 3000 Over 4 weeks cumulated ion release [µg/cm2] 2500 2000 1383 1500 1000 322 500 231 122 98 84 34 19 15 7 3 0 Ni Cr Mo Ga Fe Chromium content vs corrosion

  15. Little booklet offer informations about allergies and testing substances. Available in German, French or English language by BEGO. To find, as well, at the BEGO- Homepage (TrainingsCenter, AllergieCompass)

  16. Wiron light- beryllium-free - Wiron 99 remains the BEGO premium nickel-chrome bonding alloy. Wiron 99 users are happy and should stay happy! Wiron light is designed to offer the opportunity to win new customers among the users of beryllium containing alloys! The time is right! More and more technicians will become aware of the danger in regard to beryllium and will swap their alloy. Wiron light provides among other features excellent melting properties, a lighter oxide, a biocertificate and a favourable price (less 15 % compared to Wiron 99)

  17. Bonding alloys For acrylic veneering Wiron 99 top Wiron light medium Wirocer Plus basic Wirolloy NB Wirolloy BEGO non-precious alloys (1) Ni-Cr

  18. Bonding alloys Partial denture alloys BEGO non-precious alloys (2) Co-Cr Wirobond 280 WIRONIUM alloys top Wirobond C Wirobond LFC medium Wironit LA Wirobond SG basic Wironit Wironit XH

  19. Thank you for your attention

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