FREE TOOL · DENTAL STL
Review and repair your STL…
Review open edges, non-manifold edges, and degenerate triangles in your browser. Download a sanitized copy without uploading the file.
Many dental STLs are large (often 400 MB or more). Browser analysis handles up to 75 MB; larger files use the isolated engine, up to 500 MB. The full suite is free.
Your STL will appear here.
Load a file to orbit, zoom, and see each issue marked on the mesh.
VERIFIED COMPARISON · 09 AUG 2026
What matters when repairing a dental STL
“Repaired” is not enough. You need to see the defect, what changed, and what remains — before sending the file to the lab.
Use the free tool- The defect stays on the meshOpenings, intersections, and problem faces are marked on the model.
- Separates distinct piecesDistinguishes within-piece intersections from overlaps between components.
- Re-checks the exported fileReopens it, re-analyzes it, and stores fingerprints of the original and the result.
- Does not force a false zeroIf closure is ambiguous or a check did not finish, it says so.
- Reconstructive suite includedEligible fragments and holes, thickness, deviation, and PDF certificate, at no charge.
This geometric review does not prove fit, occlusion, minimum thickness, or printability.
File size: many dental STLs exceed 400 MB. TrazaLab reviews in the browser up to 75 MB; larger files use the isolated engine up to 500 MB — they are not rejected just for being large. The full suite is free.
TrazaLab vs JustFixSTL, iamRapid, Formware, and Fusion
Only what each official page published (9 Aug 2026). “Not published” means it does not appear there; it does not prove the capability is absent.
CONNECTED WORKFLOW
Free tools, then the full case
Start in the browser without an account. TrazaLab keeps the mesh or series tied to prescription, evidence, and send decisions.
- STL viewerOrbit, section plane, wireframe, and mesh inventory in the browser.
- DICOM viewerAxial CBCT review with window/level and declared scale.
- Advanced odontogramThe chart that builds the case, not a separate drawing.
- Dental STL analysisCase-linked inspect, measure, compare, and preflight.
- DICOM workspaceSeries choice, scale, and evidence tied to the case.
- Remake preventionPrescription, evidence, and send review before the lab.
- Digital RxThe shared clinical prescription that travels with the case.
- PricingFree plan and 14-day trial from the plan you choose.
FREQUENTLY ASKED QUESTIONS
About this tool.
Is my STL uploaded to TrazaLab?
Analysis and conservative repair run in your browser. The file is not sent to the internal laboratory production engine. Only if you authorize reconstructive repair is an encrypted temporary copy stored (up to 24 hours) to complete that job.
What does this tool repair?
Conservative repair cleans degenerate or duplicate triangles and orientation without moving vertices. It flags open edges and non-manifold edges; it does not invent a watertight seal. Reconstructive repair (included, at no charge) can reattach fragments and fill eligible holes when you authorize upload and the file is eligible.
Is this the same internal production tool?
No. This page is a separate public component. The protected production engine, case approvals, and QA gates are not mounted on this route.
What does the free reconstructive suite include?
Isolated reconstructive repair, thickness sampling when the mesh allows, a geometric readiness PDF certificate, and signed downloads. Hollow and drain are not offered on the public button. It does not promise fit, occlusion, or print success.
Does reconstructive repair close the open intraoral scan border?
No. Dominant openings classified as intentional scan borders are preserved. The tool does not invent an IOS floor. Only bounded defect holes can remain eligible. If reconstructive repair would not change the mesh, it is not run.
How large an STL can I review here?
Browser analysis handles up to 75 MB. Larger dental STLs can use the isolated engine up to 500 MB after you authorize reconstructive repair. Files are not rejected only because they are large. Confirm millimeters or inches before reading dimensions.
What do SHA-256 fingerprints and the JSON report prove?
After conservative repair the export is reopened and reanalyzed. Fingerprints identify the original and the result. The JSON report stores the review before and after. If independent verification does not match, download stays hidden and the verdict is resend.
When is thickness shown as not available?
Thickness is sampled on closed, consistently oriented shells. Open-only meshes report thickness as not available. That empty reading is intentional. Minimum thickness on this page is geometric, not a print-success or fit guarantee.
Is the online STL viewer the same as this repair page?
No. /online-stl-viewer.html is inspect-only: orbit, section, wireframe, and a geometry inventory. Conservative repair, reconstructive repair, and downloads are on this URL, /stl-file-repair-online.html. The Spanish repair twin is /stl-fixer.html.
Does this job create a TrazaLab case?
No. This work does not attach the case to an account automatically. Odontogram, digital Rx, evidence, and laboratory send live in the TrazaLab case workflow. Use the handoff links on this page when you want that sequence.