Digital models crown occlusion is off, poured stone model occlusion is fine

[TMLab]

Crowns made on our poured models have fine occlusion our client tells us, but the crowns made from a digital model like the one below have premature occlusion on the crown. Any ideas what some of the reasons could be?

Thanks for your input everyone.

 

[Labwa]

can you post a picture of the die/model design?

 

[rkm rdt]

Crowns made on our poured models have fine occlusion our client tells us, but the crowns made from a digital model like the one below have premature occlusion on the crown. Any ideas what some of the reasons could be?

Thanks for your input everyone.

View attachment 19741

Was this from a Trios 3?

It may not be the models or anything you have done.

 

[PearlZ]

ah, the old 3 point articulator. 3shape early versions of those forced models to be held open not shut prematurely. kind of the opposite problem.

iunno.

 

[rkm rdt]

I stopped using the 3 point as well for the same reason.
The 3 shape quad @-40 microns works perfectly for me.

 

[PearlZ]

i fixed it and can distribute the fix to you if you want.

 

[rkm rdt]

i fixed it and can distribute the fix to you if you want.

I need to fix a client that is blaming me for his inaccurate scans.

I suspect something is up with Trios 3 calibration .

 

[TMLab]

can you post a picture of the die/model design?

Sorry, I don't have a picture of that.

 

[TMLab]

ah, the old 3 point articulator. 3shape early versions of those forced models to be held open not shut prematurely. kind of the opposite problem.

iunno.

No, I think what you describe would cause the occlusion to be high as our client is reporting.

 

[TMLab]

I stopped using the 3 point as well for the same reason.
The 3 shape quad @-40 microns works perfectly for me.

Thanks, that is very usable information. We'll try that.

 

[TMLab]

i fixed it and can distribute the fix to you if you want.

That would be great. Thank you very much.

 

[PearlZ]

http://dentallabnetwork.com/forums/threads/fixed-3point-articulator-3shape.21280/