The effect of marginal gingivitis on tooth mobility.

@article{Hotz1971TheEO,
  title={The effect of marginal gingivitis on tooth mobility.},
  author={Philipp Hotz and S H Son and Hp. Muehlemann},
  journal={Helvetica odontologica acta},
  year={1971},
  volume={15 2},
  pages={103-6}
}