@article{seixas_câmara_2021,  title={The smile arc: review and synthesis},  volume={26},  ISSN={2176-9451},  url={https://doi.org/10.1590/2177-6709.26.3.e21spe3},  DOI={10.1590/2177-6709.26.3.e21spe3},  number={3},  journal={Dental Press Journal of Orthodontics},  publisher={Dental Press International},  author={SEIXAS, Máyra Reis and CÂMARA, Carlos Alexandre},  year={2021},  pages={e21spe3} }