The present invention relates to a tip for an intraoral scanner, comprising: a housing body having an imaging unit through which images are transferred to an imaging module of the intraoral scanner, at least one aperture adapted to provide gas streams, wherein said at least one aperture is configured such that during a scanning session a scanned region is first being cleaned (e.g., from blood or oral particles) by gas streams prior to the actual scanning of said region by said imaging unit, while after the cleaning and during the actual scanning of said region, said at least one aperture causes gas streams to diffuse around the entire periphery of said cleaned and scanned region.
