“Comparative evaluation of chlorhexidine mouthwash with and without an anti-discoloration system - a randomized controlled trial" . International Journal of Environmental Sciences, [S. l.], p. 327–332, 2025. DOI: 10.64252/6hxz8648. Disponível em: https://theaspd.com/index.php/ijes/article/view/3907.. Acesso em: 9 oct. 2025.