I had test driven a Trio5 to make a few of surgical guides I have made by a lab. Often, they were not sitting properly. An actual stone model based surgical guide provides a better fitting intraorally. I have a feeling that all major scanners are good in general but not as accurate as it should be. For the level of accuracy those scanners are way too expensive. Considering the upscaled technology in this industry, all Intraoral scanners show a similar level of accuracy therefore it is not worth spending extra money for some functionalities that you hardly use.
