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Accuracy is the spec everyone quotes and few understand. Sub-20 µm sounds great until you learn it is measured on a bench, not a moving mouth.
The four factors
- Accuracy vs. speed: AI-assisted scanners now hold <20 µm while scanning faster — pick both.
- Open export: STL/PLY/OBJ lets any lab or mill take the file. Closed locks you in.
- Workflow fit: clinics want speed; labs want die detail.
- Total cost: calibration, warranty, software updates.
Red flag
A scanner that only exports to the maker's own mill is a subscription, not a tool. Choose open output.
Compare the Scanning Series IOS line-up with open STL/PLY export.
Specs that matter
| Spec | Good | Great |
|---|---|---|
| Accuracy | ≤20 µm | ≤10 µm |
| Scan speed | Single arch <60 s | <30 s |
| Open export | STL | STL + STEP + PLY |
Questions before you buy
- Does it export open files, or lock you to one lab?
- What is the real cost per scan (tip life, calibration)?
- Is the software updated free, or by subscription?
Compare handsets in the Scanning Series.