Today, dental pulp DNA, free from any dental pathology, constitutes a remarkable means of investigation in odontology but also in archeology. Indeed, numerous historical researches in forensic dentistry use this scientific device in order to specify different elements such as the origin of the body, its identification, the cause of its death, its eventual filiations or even its place in the long chain of the human evolution. Here are few historical examples where dental pulp DNA gave extraordinary results.