If you look carefully, you might be able to notice that the people in your life have similar or differing tooth shapes depending on their ethnic background. This study shows that that observation can actually be backed by science.
17 new genes were discovered to have been linked to tooth development, with one being believed to derive from Neanderthals. The Neanderthal tooth gene was found to only impact those with European descent, displaying as teeth that are typically smaller and thinner, specifically the incisors, than other ethnic groups. It was also found that a gene that affects incossr shape in East Asians tends to affect the width as well.
I have actually noticed this myself. As someone with Asian descent, I have particularly thicker front teeth with a shallow cup shape on the posterior side, rather than completely flat teeth.
While fun and interesting, this new information on the genes that influence tooth shape can actually go as far as to aide in overall dental understanding and improving dental care. For instance, particularly difficult dental issues could possibly undergo genetic testing and be treated using gene therapies aimed at the particular tooth gene that is affected.
There is still much to learn about the genetics of tooth formation, but these findings help us better understand human evolution and possibly find better treatments to existing dental issues.
New Article Source: https://www.usnews.com/news/health-news/articles/2024-12-17/scientists-identify-genes-that-shape-peoples-teeth
More on Genetics and Oral Health: https://www.ada.org/resources/ada-library/oral-health-topics/genetics-and-oral-health
it is wild to me to see how much can truly be affected by genes. the short answer is everything... at some point in time the answer will be genetics, and the gene that plays a role. whether it is a large chunk or a small sliver, genes will affect it. whether it is teeth shape, color, density, plaque level, etc. it's just wild.
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