Two ways to import digital impressions
There are two choices for importing digital impressions: using the Order Import window, or performing a manual import. Both are covered in this article.
Full case or non-standard file?
Full cases—whether they are 3Shape, 3M, TRIOS, Itero, Planscan, Sirona/CEREC, or UDX cases—are imported using Order Import.
Other, non-standard case files need to be imported manually:
- .STL is a 3D Systems file and needs to be imported manually.
- .DCM is a Digital Imaging and Communications in Medicine (DICOM) file and needs to be imported manually.
NOTE: Some cases use the same file type; be sure to know which case you've actually got before importing it to avoid errors.
|If the file type is...||...it's a ___ case.|
|.ULDC||3M Lava C.O.S.|
|.3oxz||3M True Definition Digital Impression|
|.3ox, .3oxz||3Shape Communicate Order Exchange (TRIOS)|
|.stl PLUS .xml||iTERO|
|.3se, .3si||Sirona CEREC|
Use a .ZIP viewer to see the contents.
If it's any of the above, unzip the file, and follow those workflows
|An example of a 3Shape .ZIP file|
Importing a Full Case
Use this option for all full cases, regardless of original software.
Right-click on "Today" and select Advanced>Import.
The Order Import window will appear.
If you are importing a 3Shape case, select
and click OK.
If you are importing any other type of full case, select
Select which type of file you will be importing, click OK.
Both import selections open the Open File window. Select your file and click Open.
The file will import and open in a case. The case will contain as much information as was in the file.
Manually Importing Scan Files
.stl or .dcm files are imported manually.
NOTE: This option is also useful if there are scans but errors are occurring.
In DentalManager, create a new case.
Select Digital impression as the Object Type. Select the other options for the scans you are importing.
Set up the case as you normally would. Add a model if requested.
NOTE: If you add a model, some other type of restoration will need to be present as well
Click OK--do not click Scan.
The main Orders window will open
Right-click the case file and select Import Scan.
A series of browser windows will open.
Highlight the correct file. Check the Scan is unprepared box and the Use occlusal alignment box (if you have one). Click Open.
Additional browser windows may open; select and open each scan file you need for the case.
Preparing the Scans
Depending on how the case was imported and how the customer had previously set up the order, it may be in a different state than expected.
If you haven’t already, open the Modify screen to make sure the case is set up right.
To print a model, the case will have to be from a digital impression and will need model work turned on.
If it’s object type is set up as model or regular impression you may be able to change it to go back to Import option 2.
If the order does not have model work turned on you should be able to do so at this point with little change to this workflow.
The case should be in the scanned (unprepared) state in DentalManager.
When you Right-click you should have the option Model available. This will take you into DentalDesigner and will ask you to first Trim the models.
When doing this, Try to avoid areas that have holes, sharp objects or loops of material. I’ve also noticed that we can avoid some errors later on by keeping the trim line away from the edges of the scan.
Do this for the antagonist arch as well. and then proceed to the Occlusal alignment steps.
It will show you a blue plane and the prep arch. You will want to maneuver the plane so that it is relatively flat and matches up with the arch’s occlusion.
Sometimes an error occurs due to the plane being upside down. There is no visual indication of this but you can avoid this by viewing the occlusion from a bird’s eye view and hitting the Set from viewbutton and adjusting from there.
- The next step will show you how the antagonist is engaging the prep arch. If you are not making a model and have a bite, you don’t need to worry about this step.
- If you are making a model, the only thing you need to keep an eye on is the red areas.
- You can make sure these are kept small by dragging the model up in very small increments.
Once that is complete, skip the sculpting steps for antagonist and prep arch since you will not want to adjust the scan data.
- You will then be asked to mark the margin on the prep arch (if this is a crown or coping case).
- Leftclick on the prep and it will give you a starting line that you can adjust by drawing small lines. Similar to the model trimming steps, holes and sharp, angular surfaces will cause problems and will need to be avoided.
- If a margin is unclear in any area moved the margin just outside of where you believe it is. If margins are particularly absent from the scan the case will need to be rejected as anything made using the scan will be inaccurate.
- Once you are done marking the margin, hit next and it will take you into the insertion direction step.
- Once there you can continue on to design the restoration if you have one.
- If you are not producing one you can hit the save icon in the upper right and close the case.
Building the Model
- When you rightclick the case you should now have the option to Build Model.
- Once ModelBuilder opens it will give you the option to revisit many of the steps we’ve previously gone through.
- You can skip forward to confirm that the margin line is correct and hit next again. It will show you the generated die and a blue wall displaying the die removal path.
- If the wall is intersecting with an adjacent tooth, angle the die slightly. Once in the articulator step you can adjust the articulator and id text locations as needed/requested.
- From there you can keep hitting next until the model design is saved.
Unable to load order file message
This message appears more often than not when taking an imported case (usually option 1) into ModelBuilder. It’s simply saying that it doesn’t recognize one of the settings/materials and that it will replace it with one it does recognize. you can hit OK and proceed without issue.
A short error window will pop up saying that there's a “stacking error” usually at or after the die orientation step of ModelBuilder. This error can also manifest by the blue die removal walls being sideways or will not generate at all. This is caused by the occlusal plane being sideways or upside down. You can resolve this by going to the occlusal plane step of DentalDesigner, hitting the Set from View button, and adjusting as needed
MB Preparation Scan does not exist
This error will appear when initially opening ModelBuilder. The File it's referencing will either be the MB Preparation scan or the MB Antagonist scan that would have been generated if the preparation steps were completed in DentalDesigner. A way of getting around this is by going to the case scan files (in DentalDesigner Rightclick>advanced>explore order), making a copy of the preparation scan and renaming it to “MB Preparation scan”. You will also need to do the same for the antagonist and Preprep scans if you have them.