Pamela Yelick, a professor at Tufts University School of Dental Medicine, led a groundbreaking study aimed at creating living bioengineered teeth to replace lost ones. Unlike titanium implants—which lack natural sensory feedback and can cause complications—the team is working to regenerate fully functional teeth using a “tooth bud” approach.
In their study, published in Stem Cells Translational Medicine, the researchers demonstrated that combining mesenchymal cells from the pulp of human wisdom teeth with epithelial cells from pig teeth could successfully grow teeth similar to human ones. These tooth buds were implanted into the jaws of adult pigs, where they developed over three months, although they did not fully erupt.
The next steps for the project include extending the observation period for tooth development, studying the signaling molecules that regulate growth, and developing methods to stimulate tooth growth directly in the jaw without intermediate cultivation. Ultimately, the team hopes to engineer fully human biological teeth without using pig cells.
This work paves the way for a revolution in dentistry, offering living teeth as an alternative to artificial implants. While significant challenges remain, the potential for restoring oral health and improving quality of life is enormous.
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