Scientists believe that humans may still possess hidden "third rows of teeth" just waiting to be activated. This idea is inspired by animals such as sharks and elephants, which naturally replace their teeth over the course of their lives. Combined with advances in tooth tissue and bone regeneration, researchers are confident that a biological reversal of tooth loss is within reach.
If all goes well, tooth regrowth could be a real option in the next decade for millions of people who lose teeth due to age, injury, or disease.
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