3d intraoral scanner measuring fluorescence

A 3D scanner system for scanning a surface of teeth within an oral cavity, the 3D scanner system comprising:

• a hand-held 3D intraoral scanner configured to operate with one or more image sensors, the 3D intraoral scanner comprising:
• i. one or more image sensors;
• ii. a first light source configured to emit light at a first wavelength or range of wavelengths, wherein the intraoral scanner is configured to record data for a 3D surface topography of the teeth based on light detected at the first wavelength or range of wavelengths;
• iii. a second light source configured to emit light at a second wavelength or range of wavelengths, wherein the second wavelength is in the range of 500 nm to 850 nm, wherein the intraoral scanner is configured to record data for a cariogenic region based on light detected at the second wavelength or range of wavelengths;
• and
• iv. a tip configured for being mounted over a distal end of the 3D intraoral scanner, said tip comprising a region which is transparent to light emitted by the first and/or second light source;
• one or more processor units operably connected to the hand-held 3D intraoral scanner, the one or more processor units configured for:
• i. shifting between the first and second light sources repeatedly such that the surface of the teeth within the oral cavity is illuminated successively by the light from the first and the second light source;
• ii. generating a digital 3D representation of the teeth based on the recorded data for the 3D surface topography;
• and
• iii. identifying one or more cariogenic regions in which carries is present based on light detected at the second wavelength or range of wavelengths;
• a display configured for visualizing the digital 3D representation of the teeth and/or for visualizing the cariogenic region(s).