Model preparation ensures that the dentist’s input (STL file or physical impression) is converted into a precise, disinfected, and calibrated master model for thermoforming.
Errors here (undercuts, voids, irregularities) will compromise adaptation, create pressure points, and result in poor fit or remakes.
Convert the dentist’s STL or impression into a uniform, stable working model.
Eliminate anatomical irregularities that could distort thermoforming.
Ensure model is properly disinfected and isolated before pressing.
Lab Technician (CAD/Print): Verify STL geometry, prepare digital model, and manage 3D printing or plaster pouring.
Lab Technician (Finishing): Refine, disinfect, and isolate the model.
Hundredjack SaaS: Maintain digital link between case file and printed/physical model.
Import STL into certified CAD software.
Run mesh integrity check (no holes, non-manifolds, distortions).
Print model using certified dental resin (biocompatible, high-resolution).
Post-cure model according to resin manufacturer’s validated cycle.
Log 3D printer ID, resin type, and batch number in SaaS.
Accept only impressions approved by Hundredjack Operations.
Pour with high-quality dental plaster, ensuring no voids.
Allow full set before handling.
If required, digitize impression → convert to STL → follow digital workflow.
Eliminate excess undercuts to prevent thermoforming errors.
Seal interdental gaps and palatal irregularities with light-cure resin.
Smooth occlusal and palatal surfaces for uniform thermoforming.
Trim model base for stable positioning in thermoformer platform.
Secure model in an articulator or stable mounting base.
Verify occlusal plane is correctly aligned (perpendicular to platform).
Disinfect model thoroughly with Hundredjack-approved disinfectant.
Apply validated isolating agent evenly across surface.
Avoid pooling or uneven coverage.
Surface smooth, uniform, free of voids or roughness.
No sharp edges or irregularities that could damage sheet.
Correct angulation confirmed.
Isolation applied evenly, no bare areas.
At the end of this stage:
A calibrated, disinfected, and isolated master model is ready for thermoforming.
Model data and preparation steps are logged in SaaS.
Models without documented disinfectant + isolation = non-conformity.
Printer/plaster batch logs must be attached to case file.
Deviations in angulation or surface prep = cause for remake.