Fiducial Markers
The precision reference points that make perfect digital alignment possible — matching pre-surgery and post-surgery scans with micron-level accuracy.
What is a Fiducial Marker?
A fiducial marker is a precision-machined reference component placed in the palatal tissue during scanning. It provides a fixed geometric reference point that allows our software to align pre-surgery and post-surgery scans with micron-level accuracy.
Specification
Fiducial Marker for digital scan alignment for Photogrammetry. It is a self-tapping screw and takes a Nobel® Unigrip/Star driver.
Self-Tapping
Secures directly into palatal tissue.
Nobel® Compatible
Unigrip/Star driver interface.
How Markers Are Placed
Fiducial markers are secured directly into the palatal tissue, creating stable reference points that remain fixed between scans.
Intraoral Placement
Markers are placed in the hard palate area, where they remain stable and visible across multiple scans. The palatal tissue provides a secure, immobile base that ensures the reference points don't shift between pre-surgery and post-surgery captures.
Digital Scan Capture
Once placed, the markers appear in the digital scan as distinct metallic geometric shapes. Their precise, machined geometry allows our software to identify them automatically and use them as anchor points for alignment.
3D Alignment & Registration
The fiducial markers create a bridge between two separate scans — the pre-surgery tissue scan and the post-surgery implant scan. Our software identifies the same markers in both datasets and uses them to register the two scans in 3D space.
Each marker appears as a numbered point in both scans. The software draws virtual connections between corresponding points and calculates the optimal alignment transformation, resulting in a perfectly registered composite model.
Markers identified automatically in both scan datasets
Point-to-point registration calculates optimal alignment
Result: sub-10µm accuracy across the full arch
Why fiducial markers matter
They're the key to aligning your pre-surgery tissue scan with the post-surgery scan — for the best possible digital fit.
Pre-Surgery Reference
Markers placed in the palate create fixed reference points on the pre-surgery tissue scan.
Post-Surgery Capture
After surgery, the same marker positions let our software align the new tissue scan to the original.
Perfect Alignment
The result is a digitally aligned model accurate enough for photogrammetry-level restorations.
Need fiducial markers for your case?
We provide markers and full placement guidance for partner dentists.
Contact the Lab