I have had my hands on the Primescan and it is the next cornerstone for the dental digital platform.  Having used most of the scanners on the market today, the Primescan is a home run for a full arch scan, edentulous rigid and the palate. Excellent for digital and printed study models. Very accurate and intuitive to use.  

Though I have been pleased with Omnicam, it is more of a quadrant capturing system though I have used it for the full arch, it is not as intuitive and more technique sensitive. What the Primescan has to offer is an upgrade image capturing system and the efficient way it compresses the data.  This will provide for routine scanning for hybrid applications, dentures, appliances, and aligners in addition to quadrant work.  The image is clearer, resulting in easy to read margins and proximal contacts.  The imaging process easily captures undercut areas and high shiny surfaces such as metal and ceramics.  

The Omnicam is an excellent digital system.  The Primscan adds complete arch applications for an expansive treatment portfolio which is where materials now and for the future are being driven for the digital platform.