Tip for an intraoral scanner

A tip for an intraoral scanner, comprising:

• a) a housing having an optical arrangement configured to transfer images of an oral region to an imaging module of the intraoral scanner;
• b) a first nozzle through which a first gas stream is applied, said first nozzle being oriented to extend downwards from a bottom of said housing to apply said first gas stream generally perpendicular with respect to the top crown surface of a tooth to remove oral particles from said oral region;
• c) a second nozzle through which a second gas stream is applied to expose a sub-gingival area of said oral region, said second nozzle being oriented to extend downwards from said bottom of said housing;
• and
• d) a buffering wall extending from said bottom of said housing, wherein said optical arrangement and said second nozzle are located on a first side of said buffering wall and wherein said first nozzle is located on a second side of said buffering wall, and wherein said buffering wall is oriented to shield said optical arrangement from the removed oral particles,
• wherein during use of the tip, said oral region is first exposed to said first gas stream and subsequently exposed to said second gas stream, thereby maintaining said optical arrangement and the oral region including the sub-gingival area thereof in a clean and dry condition during a scanning session.