Prevalence of dental fluorosis and determining the degree of severity in children aged 6-15 years in the flower production center Valleflor located in the Valley of Tumbaco. OI [Internet]. 2015 Jan. 3 [cited 2026 Sep. 10];1(1). Available from: https://revistas.usfq.edu.ec/index.php/odontoinvestigacion/article/view/93