CBCT vs intraoral scanner: understand the difference
A CBCT system and an intraoral scanner are both described as 3D dental technologies, but they do not capture the same information. Equipment planning should begin with the clinical questions and digital workflows each system must support.
Know what each system captures
An intraoral scanner optically records visible tooth and soft-tissue surfaces to create a digital surface model. CBCT uses X-rays to reconstruct a three-dimensional volume of dental and maxillofacial anatomy.
Start from the clinical question
Digital impressions, restorative design and many laboratory exchanges use surface scans. CBCT may provide internal or bony anatomy when radiographic imaging is clinically justified by a qualified professional under local radiation rules.
Check whether workflows can combine data
Planning software may register CBCT DICOM data with STL or PLY surface files. Before purchasing, test the complete export, import, alignment and laboratory handoff instead of assuming that two systems are interoperable.
Compare the correct purchasing criteria
For CBCT, review field of view, dose protocols, image quality controls, room requirements, licensing and service. For intraoral scanning, review indications, accuracy, tip reprocessing, ergonomics, export formats, subscriptions and training.
Checklist before ordering
- List the clinical questions and workflows the equipment must support.
- Separate radiographic volume needs from visible surface-impression needs.
- Confirm local radiation, registration and room requirements for CBCT.
- Test DICOM, STL and PLY exchange with the actual planning and laboratory software.
- Compare training, quality assurance, updates and service response.
- Have qualified clinicians validate indications and protocols before use.
Frequently asked questions
Can an intraoral scanner replace CBCT?
No. An optical surface scan does not provide the radiographic volumetric anatomy produced by CBCT.
Can CBCT replace a digital impression?
Not as a general rule. Restorative surface detail and laboratory workflows often rely on a dedicated optical scan or impression.
Should every clinic buy both systems?
Not automatically. Evaluate case mix, referral options, qualified staff, local requirements, utilisation and total ownership cost.
Sources and technical references
Use these references with local requirements and each manufacturer's instructions for use.