Both scanners turn physical anatomy into a digital file, but they’re built for different jobs and different users. Buying the wrong one means paying for capability you can’t use – or missing the one you need. Here’s how to choose.
The Core Difference
An intraoral scanner (IOS) is a handheld wand that captures a digital impression directly in the patient’s mouth. A desktop scanner is a benchtop unit that scans physical objects – models, dies, impressions, and articulated cases – in the lab. One captures the patient; the other captures what’s on the bench.
When You Need an Intraoral Scanner
Choose an IOS if you work chairside and want to replace conventional impressions:
- Digital impressions without trays, material, or gag-reflex discomfort.
- Cleaner, faster patient experience and immediate on-screen review.
- Direct case submission to your lab or CAD software.
It’s the right tool for clinics and clinicians. Options range from the Medit i700 to the all-in-one mobile-cart Runyes V3 PRO, across Articon’s intraoral scanners.
When You Need a Desktop Scanner
Choose a desktop scanner if you fabricate restorations from models or impressions:
- High accuracy on full-arch and articulated cases, dies, and wax-ups.
- Scans physical objects – including impressions and stone models – not the patient.
- Backbone of the lab CAD/CAM workflow, feeding design and production.
It’s the right tool for dental laboratories. The Medit T-Series covers the range – T310, T510, and the high-accuracy T710.
Do You Need Both?
Often, yes – but for different reasons. A clinic that also runs an in-house lab benefits from an IOS for capture and a desktop scanner for model and articulator work. A lab receiving both digital files and physical impressions may keep a desktop scanner as its core tool while supporting clinics that scan intraorally. Map the two scanners to the two jobs, not to each other.
One Thing to Check Before Buying: Open System
Whichever you choose, favor an open-system scanner that exports standard files (such as STL). Open output lets you design and produce on any compatible software and machine, instead of being locked into one manufacturer’s ecosystem – essential for a flexible CAD/CAM workflow.
FAQ
Is an intraoral scanner accurate enough for the lab? For single units and short spans, yes; full-arch accuracy keeps improving. For full-arch model-based lab work, desktop scanners remain the accuracy benchmark.
Can a desktop scanner scan a patient? No – it scans physical objects only. Capturing the patient directly requires an intraoral scanner.
Which should a new clinic buy first? A clinic taking its own impressions starts with an IOS; a lab fabricating from models starts with a desktop scanner.
Bottom Line
Capturing patients chairside? Intraoral. Fabricating from models and impressions? Desktop. Doing both under one roof? You likely need one of each – and in either case, choose an open system.
🛒Explore our full range of intraoral and desktop dental scanners using the links below:
👉Articon Intraoral 3D Scanners
👉Articon Desktop 3D Scanners