During one of the archeological excavations in the Valley of the Kings in Egypt from ancient burial got several mummies, whose age has reached 4,5 thousand years. Scientists were amazed: in the jaws of some of them shone artificial gold teeth, remarkably similar to the product of modern dentists. No one even suspected the high skill of dentists Ancient Egypt. But the ancient Maya were able to not only produce artificial teeth, crowns and fillings and place. The composition of the dental cement, which is then used, we do not know, however, he was certainly a very high quality, as the seals have survived to our time.