At Helotes Family Dentistry, Dr. Brigman and our team never stop seeking additional education and training on oral health. Sometimes, it blows our minds to think about how accurately a small portion of your body – your teeth and oral health – can provide information about your whole body.
For example, oral health is a great indicator of overall health. When we examine your teeth and gums, we can gather clues about other ailments or risk factors you may be experiencing, like heart disease. Your teeth and gums contain so much information about who you are, what you eat, and the lifestyle you live. So, when we recently found out that scientists used DNA from a 4000-year-old mummy’s tooth to identify it, we were only a little surprised.
Identifying a Mummy
In 1915, archeologists discovered the severed head of a mummy in an Egyptian tomb that they determined belonged to an ancient governor named Djehutynakht and his wife. For almost 100 years, the identity of the mummy eluded researchers until the FBI released results of DNA testing in June of 2018.
Building a Case
Because of the mummy’s age, scientists did not think it would be possible to extract DNA. However, the FBI got involved and decided to try extracting DNA from one of the mummy’s teeth. Because teeth are protected by enamel (the hardest surface in your body), scientists believed that the internal DNA might still be extractable.
The FBI was able to extract and sequence DNA and by checking the sex chromosomes of the sequenced DNA, determined that the skull was male and belonged to the unfortunate governor. As DNA technologies continue to improve, researchers are optimistic that the results can be used to close cold cases and reunite remains with their loved ones.
We hope the knowledge that thousands of years into the future, scientists may be able to learn about you through your teeth will inspire you to take good care of those pearly whites. Be sure to brush twice daily for two minutes each time, floss every day, and visit our office regularly for cleanings and exams. To ask our team any questions or schedule your next visit, contact us today!
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