Sea urchins have teeth? A review of their microstructure, biomineralization, development and mechanical properties.

@article{Stock2014SeaUH,
  title={Sea urchins have teeth? A review of their microstructure, biomineralization, development and mechanical properties.},
  author={S. R. Stock},
  journal={Connective tissue research},
  year={2014},
  volume={55 1},
  pages={41-51}
}
Sea urchins possess a set of five teeth which are self-sharpening and which continuously replace material lost through abrasion. The continuous replacement dictates that each tooth consists of the range of developmental states from discrete plates in the plumula, the least mineralized and least mature portion, to plates and needle-prisms separated by cellular syncytia at the beginning of the tooth shaft to a highly dense structure at the incisal end. The microstructures and their development… CONTINUE READING