EFFECTIVENESS OF BLUE COVARINE IN WHITENING OF TEETH: A SYSTEMATIC REVIEW. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 10, p. 3149–3174, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/10991. Acesso em: 13 aug. 2026.