In 1995, Seppa et al conducted a study in which they compared the anti-cariogenic effect of fluoride, in gel and varnish presentation APF and FNa respectively. Results revealed there were no statistically significant differences, thus, it was concluded that fluoride varnish was as effective as fluoride gel.
En 1995 Seppa y colaboradores realizaron un estudio comparando el efecto anticariogénico del fluoruro en su presentación en gel y barniz FFA y FNa, respectivamente; los resultados mostraron diferencias no estadísticamente significativas, concluyendo así que el barniz de flúor es tan efectivo como el flúor en gel.