Dentistry is going all manner lower back to when people first had teeth…properly no longer pretty that long. However, one observe discovered evidence of enamel being drilled in skulls that dates from 7,500 to 9,000 years in the past. The holes were in all likelihood made the use of a prehistoric bow-drill. Could that be the paintings of the primary dentist? Other biting studies conducted by using the University of Bologna, Italy on a 14,000-yr-old cranium discovered that "one rotten teeth inside the jaw were deliberately scoured and scraped with a tool," according to the BBC. That makes dentistry one of the oldest recorded professions and is certainly a purpose to grin.