The shoulder spring for eruption of impacted canines.

@article{Celebi2017TheSS,
  title={The shoulder spring for eruption of impacted canines.},
  author={Faith Celebi and Ali Altuğ Biçakçi},
  journal={Journal of clinical orthodontics : JCO},
  year={2017},
  volume={51 10},
  pages={657-660}
}