More and more Americans have problems with their teeth. This is because of genetic reasons and also because of poor oral hygiene. But what if human teeth regeneration could be possible? Since shark teeth regeneration is. By studying how sharks regrow their teeth, scientists have faith that in the future they may find a solution for human teeth regeneration too.
Sharks have the ability to continuously regenerate their teeth. They lose at least 30.000 teeth over a lifetime, but each lost tooth can be regrown over a period of days or months. A shark is capable of replacing lost teeth as many as 50 times over the course of its lifetime.
Meanwhile, humans develop only two sets of teeth in their lives (milk and permanent teeth). These two sets are often not enough, and we need implants, crowns, bridges, and dentures in order to properly maintain our teeth’s functionality. The question that appears here is, what if we could discover the genetic cause for sharks’ ability to regrow their teeth and use it to develop methods of growing new teeth in humans?
Researchers have found that within the epithelial cells in the sharks’ mouths, there are special areas with stem cells that are responsible for their continuous tooth regeneration. These cells are called the dental lamina. All vertebrate teeth are very similar, which means that by studying sharks’ teeth, we may discover why humans have lost their regenerative ability and find a way to start forming new teeth within the mouth using stem cells.
Many labs around the world are focused on various ways to develop new human teeth. The point is that if we retain cells with future regenerative potential, we might be able to culture our own sources of “stem” cells to start the process of early tooth development. We could then implement these cells into toothless regions of the jaw when new teeth are needed. Keep in mind that these are not the stem cells associated with a fetus. They are the natural stem cells that already exist in our mouths.
Scientists have found that humans and sharks share the same gene network that allows sharks to regrow their teeth. We could have the ability to regrow our teeth if we could find a way to switch these genes on. These genes in people die off or break down after our milk teeth and our adult teeth grow. There is a possibility we can reinvigorate them with future dental therapies. This could change dentistry forever. Since we have the same genes to make teeth, we also have a regenerative program. The study was done by researchers from the Department of Animal and Plant Sciences from the University of Sheffield, led by Gareth Fraser.
As you could see above, progress related to human tooth regeneration has been made. Researchers are optimistic and assure us that they will manage to make tooth regeneration possible for people, and not only for sharks. We are looking forward to seeing their discoveries and their progress regarding this issue. Until then, do not forget to brush your teeth twice a day, floss, and eat healthy food.
Did this article increase your interest in these kinds of topics? If the answer is “yes”, do not hesitate to contact Premier Smiles. Dr. Arhiri is here to answer your questions and also to keep you updated with the latest news in dentistry.
References:
http://www.dailymail.co.uk/sciencetech/article-3444505/Could-regrow-teeth-like-SHARKS-Humans-genes-used-predatory-fish-repeatedly-renew-gnashers.html
https://en.wikipedia.org/wiki/Dental_lamina
https://www.alternet.org/we-share-genes-help-sharks-regrow-teeth
https://health.howstuffworks.com/wellness/oral-care/can-people-regrow-teeth.htm
http://www.bbc.com/future/story/20160922-will-dentists-help-you-to-grow-new-teeth