Back to BlogTLDR: A digital denture case moves through six stages: capture at the clinic, submission, prescription intake, scan-quality checking, design with technician approval, and production. Most of the elapsed time sits between stages rather than inside them, and most of the recoverable cost sits in the first three.
Stage 1: capture at the clinic
The clinic scans the arch or arches, records a bite registration, and captures the supporting information a lab will need. Everything downstream inherits the quality of this step, and the lab has the least control over it.
Intraoral scanner adoption in U.S. dental practices has grown substantially over the past decade according to ADA Health Policy Institute tracking, which means more labs receive more digital cases from practices at very different levels of experience with the equipment.
What goes wrong here is well catalogued: tracking loss, blurry margins, contamination artifacts, stitching errors, incomplete edentulous scans. Our vendor-neutral scanner and lab technology FAQ covers 65 of these in detail, by scanner and by symptom, and it is free to read and to send to a referring office.
Stage 2: submission
The case and its prescription arrive at the lab. This is a handoff, not a process step, which is precisely why it is where information goes missing. Nobody owns a handoff unless somebody is made to own it.
The formats matter here. STL, PLY and OBJ are the common exports and they carry different information, colour being the obvious difference. A lab that needs colour and receives monochrome has a problem nobody will notice until design.
The prescription arrives at this stage too, and the published research on prescription completeness is not encouraging. A 2026 study of 156 prosthodontic lab forms found the shade guide unrecorded on every pretraining form and the required date missing on 69 percent.
Stage 3: prescription intake
Someone or something reads the prescription against the scan files and confirms the case can actually be made from what arrived. This is the highest-leverage stage in the whole workflow and the one most often treated as clerical.
The reason it has outsized leverage is timing. A gap found here generates a phone call the referring office can answer from memory. The same gap found at the bench two days later generates a chart pull, a callback, and sometimes another appointment. Same information, several times the cost.
In the SmileShape platform, SmartRX reads each prescription on upload, cross-references it against the scan files, and populates the case record so missing or contradictory information surfaces before design work starts.
Stage 4: scan-quality checking
The scan itself is examined for problems that will surface later as fit issues or rework: distortions, missing mesh, contamination artifacts, unclear margins. A flagged scan is a decision for a technician, not a verdict.
The judgement is genuinely difficult and it is why this stage stays human. Some flagged artifacts are irrelevant to the case being made. Others make the case unbuildable. Deciding which is which requires knowing what is being made and for whom.
SmartScan flags the issues and the technician decides. It does not diagnose, does not assess the patient, and does not approve or reject a case on its own.
Stage 5: design, with technician approval
The trim line is approved, the occlusal plane confirmed, the full-arch design proposed, then reviewed, adjusted and approved by a qualified technician. Three of the five platform stages stop here for human sign-off, and the case does not advance without it.
Manual CAD design of a full-arch denture commonly takes 30 minutes to over an hour. SmartCAD proposes a design, including margins and anatomy, in roughly two minutes from a validated scan, and the technician's time moves from construction to review.
That shift is the point, and it changes what a lab should plan for. The constraint moves from how fast a designer can build to how many cases a designer can review well. Review capacity becomes the number that governs output.
Stage 6: production
The approved design goes to milling or 3D printing, then through finishing. Output from the design stage needs to be compatible with the equipment you actually run, which is a question to settle before a purchase rather than during one.
Equipment choices at this stage have their own literature, and our FAQ covers mills, printers, resins, zirconia and post-processing in the Lab Equipment and Materials section. Those are technician questions with technician answers, and they are deliberately kept there rather than repeated here.
Where the time and the money actually go
| Stage | Typical time cost | Where money leaks |
|---|---|---|
| Capture | Clinic side | Poor scans that produce remakes later |
| Submission | Minutes | Wrong format, missing records |
| Intake | Minutes, or days if skipped | The biggest single leak: gaps found late |
| Scan check | Minutes | Cases built on scans that were never usable |
| Design | 30 minutes to over an hour manually | Labor, or up to about $40 an arch outsourced |
| Production | Equipment bound | Rework, material waste |
Read that table alongside your own measurements rather than instead of them. Stamp your cases at received, intake complete, design approved and sent to production for two weeks, and the largest of the three gaps is the one to work on first.
Related reading
- the remake starts at intake, not at the bench
- what human review looks like in an AI-assisted denture workflow
- why faster design alone will not fix your turnaround time
Frequently asked questions
What are the stages of a digital denture workflow?
Capture at the clinic, submission to the lab, prescription intake, scan-quality checking, design with technician review and approval, and production. Most elapsed time sits between stages rather than inside them.
Which stage has the most impact on turnaround?
Prescription intake. A gap found the day a case arrives is a quick call the referring office can answer; the same gap found at the bench two days later stops the case and usually needs a callback.
What file formats are used in digital denture workflows?
STL, PLY and OBJ are the common exports, and they carry different information. Confirm what your scanners produce and what your design software accepts and returns.
How long does the design stage take?
Manual CAD design of a full-arch denture commonly takes 30 minutes to over an hour. With AI-assisted design the proposal takes roughly two minutes and the technician's time shifts to review, adjustment and approval.
Where can I find scanner-specific troubleshooting?
SmileShape publishes a vendor-neutral FAQ with 65 answers covering scan quality, scanner-specific tips, file formats, implant scanning, full arch and dentures, and lab equipment and materials. It is free to read and open to citation.