What is an Intraoral Scanner and How Does it Work? An intraoral scanner is a handheld device used to directly create digital impression data of the oral cavity. Light source from the scanner is projected onto the scan objects, such as full dental arches, and then a 3D model processed by the scanning software will be displayed in real-time on a touch screen. Advantages:- 1) Patient comfort and convenience due to lack of traditional impressions trays that can cause gag relfex. 2) Time saving and f