An intraoral scanner is an optical instrument pointed at the wettest surface in medicine. A film of saliva, a bead of blood at the margin, a breath of fog on the tip — each is invisible on the monitor and quietly fatal to the fit....
An intraoral scanner is an optical instrument pointed at the wettest surface in medicine. A film of saliva, a bead of blood at the margin, a breath of fog on the tip — each is invisible on the monitor and quietly fatal to the fit....
For a single crown, an intraoral scanner is enough. For a full arch of implants, the errors of scanning add up across the span until the bridge no longer fits the bone it was built for. Photogrammetry answers with a different discipline entirely: it does...
A digital impression looks instantaneous, but it is assembled - thousands of small optical frames, each a shard of surface, registered into one continuous mesh. Understanding how the scanner sees explains everything about where it struggles....