Continuous dental replacement in a hyper-chisel tooth digging rodent.

@article{Rodrigues2011ContinuousDR,
  title={Continuous dental replacement in a hyper-chisel tooth digging rodent.},
  author={Helder Gomes Rodrigues and Pauline Marangoni and Radim {\vS}umbera and Paul Tafforeau and Wim Wendelen and Laurent Viriot},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2011},
  volume={108 42},
  pages={
          17355-9
        }
}
Contrary to their reptilian ancestors, which had numerous dental generations, mammals are known to usually develop only two generations of teeth. However, a few mammal species have acquired the ability to continuously replace their dentition by the constant addition of supernumerary teeth moving secondarily toward the front of the jaw. The resulting treadmill-like replacement is thus horizontal, and differs completely from the vertical dental succession of other mammals and their extinct… CONTINUE READING

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Molecular genetics of supernumerary tooth formation

Wang X-P, J Fan
  • Genesis
  • 2011
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