Intraoral cameras (IOCs) are cameras used by dentists or doctors to show a patient the interior of their mouth, as an alternative to using a mirror. They were first introduced in 1989 and are now widely used in dental offices. IOCs allow the patient to see a clear picture of the inside of their mouth, aiding the dentist in consulting with them on various treatment options. Images can be saved to a patient’s file for future reference.


Source: https://en.wikipedia.org/wiki/Intraoral_camera