Inaccuracies in IO Scanned Prep

[MushMaster]

Hello everyone,

Just bringing up an issue we (office and lab) are experiencing; keeping it short. I receive Medit IO scans from office and my cases have come back due to clinical rocking, open contact areas and/or tight fits despite proper fit on the printed model. For the moment I am ruling out printer inaccuracies after deliberate testing and being within calibration parameters. So, new scans were made for two of the cases and when I overlay the old and new scan, there seems to be a 'shift' in the prep area. Thus far, this to me seems the most logical source of the issue.

Has anyone, either operator or technician, experienced a similar issue and if so, have you been able to eliminate it? And how?

 

[CoolHandLuke]

 

[tehnik]

I gently ask the doctors to contact their reseller in order to fix the issue. It is either calibration issue or more likely ignoring the scanning protocol.

 

[erzdaemon]

Checking Scan Tips and the rest of the Scanners optical Surfaces may help, they can get quite bad cracks if not monitored.

 

[ztech]

I see an occasional positive deformation in the scan but haven't experienced a negative one. The positive deformations are primarily caused by operator error of not cleaning the prep after they use the retraction paste. Makes a tell-tale milky layer over the effective part of the scan.