@article{carvalho_santos_isber_cotrim-ferreira_2013,  title={Halogen light versus LED for bracket bonding: shear bond strength},  volume={18},  ISSN={2176-9451},  url={https://doi.org/10.1590/S2176-94512013000100007},  DOI={10.1590/S2176-94512013000100007},  number={1},  journal={Dental Press Journal of Orthodontics},  publisher={Dental Press International},  author={Carvalho, Paulo Eduardo Guedes and Santos, Valdemir Muzulon dos and Isber, Hassan and Cotrim-Ferreira, Flávio Augusto},  year={2013},  month={Jan},  pages={31e1–31e6} }