Otzi The Iceman, World's Oldest Wet Mummy, Had Bad Teeth
Credit: Picture: UZH
Although research has been underway on this important mummy for over 20 years now, the teeth had scarcely been examined. Dentist Roger Seiler from the Centre for Evolutionary Medicine at the University of Zurich has now examined Ötzi’s teeth based on the latest computer tomography data and found that: «The loss of the periodontium has always been a very common disease, as the discovery of Stone Age skulls and the examination of Egyptian mummies has shown. Ötzi allows us an especially good insight into such an early stage of this disease», explains Seiler. He specializes in examining dental pathologies in earlier eras.
Advanced periodontitis
The three-dimensional computer tomography reconstructions give an insight into the oral cavity of the Iceman and show how severely he was suffering from advanced periodontitis. Particularly in the area of the rear molars, Seiler found loss of the periodontal supporting tissue that almost extended to the tip of the root. While Ötzi is scarcely likely to have cleaned his teeth, his abrasive diet contributed significantly to a process of self-cleaning. Nowadays periodontitis is connected to cardiovascular diseases. Interestingly, the Iceman also displays vascular calcification, for which – like in the case of the periodontitis – mainly his genetic make-up was responsible.
This is the skull of the Iceman seen from the front. The genetic increased distance between the central front teeth as well as the severe dental abrasion can be seen, which led to a loss of more than half of the crowns in the front.
Credit: Picture: UZH
The fact that the Iceman suffered from tooth decay is attributable to his eating more and more starchy foods such as bread and cereal porridge which were consumed more commonly in the Neolithic period because of the rise of agriculture. In addition, the food was very abrasive because of contaminants and the rub-off from the quern, as is demonstrated by the Iceman’s abraded teeth. His accident-related dental damage and his other injuries testify to his troubled life at that time. One front tooth has suffered mechanical trauma – the discoloration is still clearly visible – and one molar has lost a cusp, probably from chewing on something, perhaps a small stone in the cereal porridge.
Ötzi – the world’s oldest wet mummy
The Iceman – known widely as ‘Ötzi’ – is the oldest wet mummy in the world. Since its discovery in 1991, numerous scientific examinations have taken place. In 2007, for example, also with the involvement of Frank Rühli, Ötzi’s cause of death was determined as probably stemming from internal bleeding.
The current project took place in cooperation with Andrew Spielmann (New York University College of Dentistry) and Albert Zink (EURAC, Bolzano). It was carried out at the Centre for Evolutionary Medicine in the Institute of Anatomy at the University of Zurich and received the financial support of the Mäxi Foundation in Zurich. The Centre performs interdisciplinary research into the evolution of major human diseases.
Contacts and sources:
Frank Rühli
University of Zurich
Citation: Roger Seiler, Andrew I. Spielman, Albert Zink, Frank Rühli. Oral pathologies of the Neolithic Iceman, c.3,300 BC. European Journal of Oral Sciences. April 2013. DOI: 10.1111/eos.12037
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His tooth decay is a function of eating too many McMastodon burgers….
Wow, they must of had bad dentist in those days too. Wonder if lawyers wiped out the caveman era???
he probably never visited Dr Stoneberg DDS