Evaluation of the optical density of composite resins with the use of nanotechnology by means of intraoral radiographic system (CMOS). Acta Scientiarum. Health Sciences, [S. l.], v. 37, n. 1, p. 89–94, 2015. DOI: 10.4025/actascihealthsci.v37i1.19961. Disponível em: https://www.periodicos.uem.br/ojs/index.php/ActaSciHealthSci/article/view/19961. Acesso em: 29 maio. 2026.