We design restorations from your lab or clinic scan files and send back production-ready files for milling or printing: crowns, veneers, abutments, implant crowns, splints and All-on-X. 12 hours, 24 hours for All-on-X, with a 2-hour express option.
Our CAD design service is for labs and clinics that have their own mill or 3D printer but need more design capacity, or want to hand complex designs to Khai Nguyen’s CAD/CAM team. You send the scan files; we design and send back production-ready files for you to mill or print in-house.
Times run from receipt of complete data. The express option returns files within 2 hours for the items marked.
| Design | Time | 2-hour express |
|---|---|---|
| Diagnostic wax-up | 12 h | Yes |
| Crowns, veneers | 12 h | Yes |
| Custom abutments | 12 h | Yes |
| Implant crowns | 12 h | Yes |
| Bite splints | 12 h | Yes |
| Surgical guides, gingivectomy guides | 12 h | No |
| All-on-X | 24 h | No |
Production-ready design files for milling or printing, with screenshots of the main views for approval. If you want changes, mark them on the screenshots and we update the files.
If you would rather we fabricate the restoration as well, see our ordering process. To discuss a specific case, contact Khai Nguyen.
Written for dentists and technicians. Khai Nguyen Dental Lab manufactures to clinical prescription only and does not sell directly to patients.
A design file is only useful if it matches the equipment and material you will produce it with. We design in exocad, but the settings below belong to your workflow and we cannot guess them. On your first case, state them on the prescription:
| What to tell us | Why we need it |
|---|---|
| Your mill or 3D printer and CAM software | So we send back files your CAM software can import |
| Material, brand and blank type (disc, block, printing resin) | To keep minimum thickness and bridge connector size within that material’s instructions for use |
| Cement gap and any extra spacer you use | The right value depends on your mill and material, so we need the setting you actually use |
| How tight you want proximal and occlusal contacts | So the restoration seats with as little chairside adjustment as possible |
| Implant cases: Ti-base brand and height, preferred screw-channel direction | So the abutment or crown is designed for the interface you will bond to |
If you need the exocad project file to keep editing, not just the finished mesh, say so on the prescription so we can confirm before accepting the case.
Export steps for each scanner are in our article on scanner compatibility and STL, PLY and DCM files.
The screenshots of the main views are your chance to catch problems before anything is milled or printed. Check by case type:
Design is one link in the chain. Fit also depends on your CAM settings, the zirconia sintering shrinkage factor and printer calibration. Our article on CAD/CAM accuracy and marginal fit explains where error accumulates. If several cases in a row show the same problem (tight, loose or open margins), send photos and a description so the design settings can be adjusted for the next cases.
If you would rather we fabricate as well, production takes 2–4.5 working days depending on material and number of units, Monday to Saturday, 8:00–19:00 Vietnam time, plus 2–4 days by DHL Express for international delivery. See turnaround time and shipping.
Sources: Doan HT et al. Comparison of stereolithography (STL) and polygon file format (PLY) for intraoral scans. J Dent 2026;165:106253; Mizumoto RM, Yilmaz B. Intraoral scan bodies in implant dentistry: a systematic review. J Prosthet Dent 2018;120:343–352.
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