No more gaps with home-grown teeth

日期:2019-03-02 06:09:01 作者:汲仫惑 阅读:

HERE’S something to smile about: replacement teeth have been grown from scratch and implanted into the mouths of adult mice. A similar technique might one day replace missing teeth in humans. Takashi Tsuji at the Tokyo University of Science in Japan and his colleagues extracted single tooth mesenchymal and epithelial cells – the two cell types that develop into a tooth – from mouse embryos. They persuaded these cells to multiply and injected them into a drop of collagen gel. Within days, the cells formed tooth buds,