3Shape TRIOS
From TRIOS or 3Shape Dental System, export both arches as open STL files.
Keep the TRIOS jaw labels (Upper / Lower) in the filenames so any technician can audit the pair later.
OccluTrace for labs
Upload one upper STL and one lower STL. Get an aligned articulation back. Use this page when an upload is rejected, a case stalls, or the bite looks wrong in CAD.
Start here
Find the card that matches the case on your screen. Each one tells you the next step, no guessing.
Two files, same case: one full upper, one full lower. STL, PLY, or OBJ. Under 100 MB each.
ReviewBefore you retry, check for swapped jaws, duplicated arches, over-trimmed molars, or a quadrant uploaded as a full arch.
HandoffDownload the ZIP to hand off both jaws to exocad, 3Shape, or your articulator. Grab one STL when one jaw is enough.
ServiceIf several cases are slow, check system status first. If just one is stuck, send us the case ID.
What to upload
Most failed cases trace back to one of three things: a quadrant uploaded as a full arch, the same jaw uploaded twice, or a mesh trimmed past the molars. Check the pair before you spend a retry.
Upload these
The upper file covers the full arch, all posterior teeth, and enough palate or gum surface for the aligner to find orientation.
The lower file comes from the same scan session as the upper. Not a copied case, not a bite-only export.
Upload the upper and lower as separate files. A pre-merged scene as the only source won't work.
STL, PLY, and OBJ are accepted. Each file must stay under 100 MB.
Skip these
A single quadrant uploaded as a full arch will align poorly or fail. Wait for the quadrant workflow, or scan the full arch.
A bite registration is useful in CAD but won't replace the upper and lower meshes here. Upload the arches.
Two uppers or two lowers may upload, but the alignment that comes back won't be a real articulation.
Don't trim molars, distal anatomy, or occlusal detail to shrink the file. That removes the surface the alignment uses.
Export from your scanner
Any scanner that can export open mesh files works. Export the upper and lower as two separate files, keep the scanner's jaw labels in the filenames, and skip merged or bite-only scenes.
From TRIOS or 3Shape Dental System, export both arches as open STL files.
Keep the TRIOS jaw labels (Upper / Lower) in the filenames so any technician can audit the pair later.
Open the case in Medit Link and export each arch separately.
If Medit offers a combined model and separate jaw files, pick the separate jaw files.
Confirm open export is on, then export the complete upper and lower arches.
If STL, PLY, and OBJ are missing from the export menu, your account admin needs to enable open export on the iTero account.
From CS Imaging or ScanFlow, use the open mesh export for each full arch.
Pick the complete arch model, not the trimmed surface CS produces for chairside review.
From Romexis, export the arches as open files, one jaw per file.
Open the patient case before exporting. Copied cases and old lower arches are easy to mix in by accident.
Any scanner that exports separate STL, PLY, or OBJ files per arch will work.
Not sure which menu option is right? Send us your scanner name and a screenshot of the export menu.
Read the result
Open the result viewer. Confirm the upper sits on the lower, contacts land where the bite should close, and the FDI labels match the patient. Then decide: accept, retry, or send to support.
Open the source case beside the result. Confirm the upper and lower in the viewer are the same pair you uploaded.
If a jaw is upside down, swapped, or floating, look at the filenames first. Most of the time it's a label or a partial export.
Re-export full arches from the scanner before retrying. Re-uploading the same files gets the same result.
Send to CAD
The result page has the aligned upper, the aligned lower, and a combined ZIP. Grab the ZIP for a clean handoff to exocad, 3Shape, or Meshmixer. Grab the individual STLs when you only need one jaw.
Separate upper and lower STLs, already positioned in occlusion. Drop both into exocad or 3Shape.
One archive with both aligned jaws. Use this for handoff so nothing gets dropped on the way to CAD.
Available when the result page shows mandibular motion data. Use it to drive an articulator preview.
Fix common issues
Match the symptom on the left to the likely cause. Re-exporting clean arches fixes most cases. Re-uploading the same bad files repeats the same result.
File isn't STL, PLY, or OBJ; is over 100 MB; or is a scanner project package instead of a mesh.
Re-export one upper and one lower as open meshes. If it still fails, send us the exact filename and size.
Files are large, the service is under load, or the case needs review.
Check system status if several cases are queued. For one slow case, send the case ID.
Upper and lower labels are swapped, the same jaw was uploaded twice, or one arch is a partial scan.
Re-export both full arches and retry once. If it repeats, send a screenshot of the result page.
The jaws aren't from the same case, or a source mesh was trimmed past the occlusal surface.
Confirm the pair belongs together in CAD, then retry with the original full arches.
Large meshes, browser network state, or ZIP being built on the fly.
Try the ZIP once. If the lab needs the case now, grab the individual STLs and send us the case ID after.
They may be signed in with the wrong email, or not invited to the lab account yet.
Ask the account owner to confirm the teammate's email is on the account before opening a ticket.
Run a tidy lab
When two technicians touch the same case, retries pile up and nobody trusts the final mesh. A short routine for filenames, retries, and approvals fixes that.
Name files with a case reference plus Upper or Lower. Keep patient names out of filenames if your lab policy requires it.
One technician decides whether a case gets retried. Duplicate retries make it impossible to tell which result the lab trusts.
If three cases stall in a row, check system status before re-uploading. You won't burn retries on a service issue.
Hold on to the scanner's original export until the aligned result has been accepted in CAD and milled or printed.
When a scanner keeps producing bad cases, log the scanner model, software version, export format, and file size. That pattern is what we need to help.
Running high volume? Ask about API access, shared billing, and lab-level workflow setup.
Send a support packet
Send the case ID, the screen you were on, and one screenshot. Skip patient names and chart notes. We only need what identifies the case and the failure.