Exocad: Get new abutment scan into existing design

[Pictodent-SW18]

Hi DLN,

scenario is as follows:

I am designing a crown on a scanned Ti abutment (Anatomic crown for screw retained with manual positioning of the screw channel).

Then - surprise - I need to make changes to the abutment underneath (which is like a die in this case). Say, I am making it shorter/more narrow etc.

What's the most elegant way to get a new scan of the abutment into Exocad without losing my crown design? I would need to scan both the arch with the amended abutment in place, as well as obviously a die scan of the abutment.

I know that there's the "Insert multi die scan", but for some reasons I am getting a crash/error message when I try to correct the margin line and make a new crown bottom.

Anyone had a similar issue and/or workaround?

My current way was to export the full anatomic shape as an STL, start the case anew from scan data only, and re-import the anatomic shapes as a pre-op, but it still loses part of our work...

Thanks!

nb Scanner is a Medit T500 with Medit Scan for Labs

 

[CWilliams]

I would save the design you like. Dup it all into a new project, select your new master model and "die" over the old and then import your previous crown design as a wax up or situ, adapt to margin etc

 

[NYJHL]

Yeap save crown design as pre-op and adapt to pre-op with new/modified abutment scan.

 

[Pictodent-SW18]

Hi both,
thanks, yes that is a good and safe way to do it, I was just wondering if there's another way especially for larger cases where you've already put a lot of work in with the margins etc.

 

[Thibaut]

I don't understand your problem. Multi scan is only if meshes are the same, your scanned the arch with your dies on it then all your dies on a multi die, that's a single stl with multiple meshes. When importing in exocad it will ask you to separate the meshes, say yes.
You can do a crown on an abutment in one step, though you won't get good results if you're not in 5 axes and configuring the right burs is also important.
When importing a new mesh of a die your margins will stay in the scene, if you restart the case with a new mesh of your abutment the .scaninfo won't detect your margin and you will have to do it again.
Take pictures of the different steps if you can.

 

[Eniko]

Hi, there is an option to add "scanned abutment scan". I scan the abutment fixed on the model without tissue, then add the scan, align and readapt. This way you can keep your crown and screw access hole design as well.

 

[Deena8484]

Hi both,
thanks, yes that is a good and safe way to do it, I was just wondering if there's another way especially for larger cases where you've already put a lot of work in with the margins etc.

Yes there’s a video on how to do it…. I will update when I find the link