@article{mariana boessio vizzotto2007quad-helix,
  title={The Quad-Helix Appliance in the Primary Dentition – Orthodontic and Orthopedic Measurements.},
  author={mariana boessio vizzotto,fernando borba de araújo,heloísa emília dias da silveira,adriano asmuz boza,luciane quadrado closs},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={32},
  number={2},
  pages={165--170},
  doi = {10.17796/jcpd.32.2.5171342317148474},
  year={2007}
}