With our digital scanner for dental impressions, the days of biting down on a tray of putty are gone. In the past, dental impressions were taken by quite literally pressing your teeth into a mold-making material by biting down on a tray full of goop. You would have to keep this goop in your mouth for several minutes as it hardened. While this process is painless, many patients found it very uncomfortable.
Traditional impressions are particularly uncomfortable for patients with a very sensitive gag reflex. Gagging while taking dental impressions wasn’t just a problem for the patient, either. Not being able to hold still as a result of gagging could shift the impression tray & make the mold less accurate.