my inlays/onlays don't adapt well when I make it with exocad

Discussion in 'exocad' started by enzo siarri, Jan 12, 2021.

  1. enzo siarri

    enzo siarri New Member

    Hello everyone, first post here. So the title is pretty self-explanatory.

    I am using at the clinic the sirona's camera. I usually use the sirona's cerec program to build my inlay and onlays. And I have to say the adaptation is always absolutely perfect.

    (I did buy exocad though, because... well cerec works pretty well for inlays but anything more than that and the program crashes like every 10 minutes.)

    Then a friend asked me to build inlays/onlays for him because he always have problems of adaptation when he works with other laboratory(And, I guess most of them use exocad). The issue is, Cerec is closed program, it means I can't import STLs from other people.

    So he sent me STLs and I used my exocad to build the inlays. We had adaptation problems, every single time.
    In the meanwhile my cerec is always giving me perfect inlays with no need to touch anything, it is simply going right in.
    Wich is weird to me because exocad is far better than cerec on pretty much EVERYTHING else.

    So is the problem coming from exocad? If yes, is there any solution?

    just so you know:
    My friend that's sending the STLs have a Trios camera and he is calibrating it every week.
    I tried to greatly increase the spacer but didn't help.

    Thanks you guys!
  2. 2thm8kr

    2thm8kr ɹotɐɹʇsıuıɯqA Staff Member

    Screen shots of the adaptations and and the settings used please.
    Rigant likes this.
  3. enzo siarri

    enzo siarri New Member

    there it is,

    Attached Files:

  4. enzo siarri

    enzo siarri New Member

    for the adaptation, the dentist worked on it for more than 30 minutes and then succeded to put it in.
  5. 2thm8kr

    2thm8kr ɹotɐɹʇsıuıɯqA Staff Member

    Here are my setting for emax CAD. I usually select anatomic crown instead of inlay/onlay because in past versions of exocad I didn't have much luck with the adaption to the prep of the proposed tooth form. Compare these settings to what you have and experiment. I doubt you will end up with the same setting due to differences in material and milling machine/ strategy/ tooling

    First thing I would change is the beginning of cement gap 1mm is a lot for small restorations.
    Also, minimal thickness of .7mm, areas of these types of restorations are thinner than this. I would change to .5mm or less and add material manually to the design in thin areas.

    Feel free to upload the prep and antagonist stl files.

    Attached Files:

    Rigant and dougola like this.
  6. dougola

    dougola Well-Known Member

    I'm gonna check your setting against mine to see how we compare. Thanks!

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