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    Aidite 3D multilayer bridges deformed

    Discussion in 'Zirconium' started by tehnik, Jul 10, 2018.

    1. tehnik
      Inspired

      tehnik Active Member Full Member

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      Hi, All!

      I am having a problem with the Aidite zirconia as bridges longer than 4 units will rock on the model. No matter the design and using the stabilizer. The same files with other zirconia are perfect. Many times it looks like one of the dies is 1mm above the plate, but as said, after milling it from another zirconia it is perfect. I am using programs sent from Aidite and using nabertherm ovens. So far all bridges are deformed and unusable. Aidite send long bridges program with 1450 degrees final temperature and also that is wrong as the material is opaque on such a low temperature (normal 1530). Has anybody else had such an issue with the material and knows a solution?

      Best regards.
       
    2. JMN
      Curious

      JMN Christian Member Staff Member Donator Full Member

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      What's your cycle look like? Rise time, hold time, etc.

      Each brand and even sometimes model of furnace will require some fine tuning of the base parameters supplied by the zirc mfg to get the chamber temp to what they used developing the material. Thermocouple and element location can make a big difference.
       
    3. tehnik
      Inspired

      tehnik Active Member Full Member

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      The programs are on the pictures.
       

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    4. cobusfourie

      cobusfourie Member Full Member

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      The problem is the different layers got different shrinkage. If you sinter the hole disk. The occlusal will shrink almost 2mm more than cervical in diameter. These materials only accurate on singles maybe 3 unit bridges. We tried everything even occlusal sinter supports.


      Sent from my iPhone using Tapatalk
       
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    5. user name
      Question

      user name Well-Known Member Donator Full Member

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      Same issue with Changs Aurora Lite. They quit selling it I believe.
       
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    6. Affinity
      Question

      Affinity Well-Known Member Full Member

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      I was wondering when things would get pushed a little too far.. The way to fix it seems to stop using it.. I dont trust the strength of multilayer zr for bridges. Just because it exists doesnt mean you have to use it.
       
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    7. grantoz
      Amused

      grantoz Well-Known Member Full Member

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      i also see the same problems when people use super trans zi over a ti bar .i have had to remake a couple of bridges from other labs that have tried using super trans to make it look nice and pretty but it breaks. i trust ZZ prettau as its been around for ten years now officially i have used it longer as a beta tester. where abouts is aidite made? . i think asking this of any material is a very good indication of whether a material is reliable or not. sure all companies get it wrong from time to time but it does lower your chances of problems later on.
       

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