@article{gontijo_cruz_brandão_2007,  title={Dental enamel around fixed orthodontic appliances after fluoride varnish application},  volume={18},  ISSN={0103-6440},  url={https://doi.org/10.1590/S0103-64402007000100011},  DOI={10.1590/S0103-64402007000100011},  number={1},  journal={Brazilian Dental Journal},  publisher={Fundação Odontológica de Ribeirão Preto},  author={Gontijo, Leonardo and Cruz, Roberval de Almeida and Brandão, Paulo Roberto Gomes},  year={2007},  pages={49–53} }