A new study from the University of Bologna in Italy has announced the discovery of a 14.000-year-old tooth. The event would be asignalif the tooth had not undergone "surgery" by a dentist of the time.. 
The magazine "Scientific Reports” states that archaeologists discovered it in ancient Chomper a location in northern Italy and that it dates from the Paleolithic era, about 13.820 to 14.160 years ago.
Stefano Benazzi, a palaeoanthropologist at the University of Bologna, who is the co-author of the study, told Discovery News that although the excavations began, 1988 identified this pioneering dental proof 25 years later.
The researchers discovered a tooth that contained an "extensive hole in the enamel" that was made before the specimen's death, which was about 25 years old. This cavity shows that people living during the Paleolithic era had "at least some knowledge treatmentof the disease", according to the study.
Researchers report that the ancient dental procedure of drilling enamel must have been done with tools made of different materials, such as wood and bone.
In experiments they found they discovered that the one who dealt with ancient dentistry probably used dental tools from the above materials and shot them with silica.
Needless to say the patient's pain, except and if the medicine of the Paleolithic era had also progressed in the department of anesthesiology.
