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class="f65"><a href="/web/20060619221349/http://www.msnbc.msn.com/id/3032118/" class="lk1">Technology & Science</a></span><span class="cFC0 b f70"> » </span><span class="f65"><a href="/web/20060619221349/http://www.msnbc.msn.com/id/3033055/" class="lk1">Science</a></span></td></tr></table><div class="clr"></div><a name="skipnav"></a><h1>Archaeological site yields dental surprise</h1><h2>Researchers find ancient Mexicans were getting ceremonial dentures</h2><div class="p14"><div id="finalPos"></div><div class="WCCol w300 fR clrR"><table cellpadding="0" cellspacing="0" border="0"><tr><td style="padding-bottom:20px;"><a id="linkImgRelatedPhotos"><img border="0" src="https://web.archive.org/web/20060619221349im_/http://msnbcmedia.msn.com/j/msnbc/Components/Photos/060614/060614_teeth_hsmall_830a.widec.jpg" style="border:1px solid #000000;" vspace="0" hspace="0" alt="Image: Ancient dental work"></a><div class="credit aR">University of Connecticut via AP</div><div class="caption" style="padding:10 0 0 0;">Researchers say these teeth, found at a 4,500-year-old burial site in central-west Mexico, represent the oldest known example of dental work in the Americas.</div><div class="" id="viewRelatedPhotosLink" style="display:none;padding:0 0 0 0;"><a id="linkRelatedPhotos" href="/web/20060619221349/http://www.msnbc.msn.com/id/13318772/displaymode/1176/rstry/13316074/"><img src="/web/20060619221349im_/http://www.msnbc.msn.com/images/icons/slideshow.gif" width="20" height="14" vspace="0" border="0" style="margin-bottom:-2px"></a> <a href="/web/20060619221349/http://www.msnbc.msn.com/id/13318772/displaymode/1176/rstry/13316074/" class="textMedBlackBold">View related photos</a></div><script>var hasRelatedPhotos = 'true';if (hasRelatedPhotos=='true'){var vRPL = document.getElementById("viewRelatedPhotosLink");if (vRPL!=undefined) vRPL.style.display = "";var vLRPG = document.getElementById("linkRelatedPhotos");var vLIRPG = 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The body indicated he didn’t do hard work, perhaps having been an important person in society.</p><p class="textBodyBlack"><span id="byLine"></span>Found in the Michoacan area, the body had been placed on a large rock with another rock on top of it, Chatters said.</p><p class="textBodyBlack"><span id="byLine"></span>“The teeth were filed down so much that their pulp cavities were exposed, leading to an infection,” Gabany-Guerrero said in a statement.</p><p class="textBodyBlack"><span id="byLine"></span>“During the Late Post Classic period, shortly before the Spanish came, we have seen evidence of insertion of turquoise and filed teeth in different forms, but this is the earliest evidence of a dental modification by about one thousand years,” she said.</p><p class="textBodyBlack"><span id="byLine"></span>The researchers said they found rock art and symbols related to other ancient cultures in the region including calendar symbols.</p><p class="textBodyBlack"><span id="byLine"></span>In addition to the teeth they found pieces of skull and bones from his hands, legs and feet. There was no indication of physical problems and he did not suffer from ailments such as arthritis.</p><p class="textBodyBlack"><span id="byLine"></span>The cause of death was not clear but the researchers said there had been active infections in two teeth.</p><p class="textBodyBlack"><span id="byLine"></span>Primary funding for the research came from the National Geographic Society, with added support from foundations, academic and governmental organizations in Mexico and the United States.</p><div class="textBodyBlack"><i><em>© 2006 The Associated Press. All rights reserved. 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