The effects of NaF, Fluor-protector and Aminofluoride on the enamel of permanent teeth in children

Uticaj različitih preparata fluora (NaF, Fluor-protektora i Aminfluonida) na gleđ stalnih zuba određivan je na osnovu koncentracije fluora u površinskom sloju gleđi i njenoj otpornosti na djelovanje kiselina. Preparati fluora aplicirani su na intaktne ekstrahirane zube. Koncentracija fluora određivana je u uzorcima gleđi elektrodom sa pH metrom za fluoride marke »Beckman« Otpornost na delovanje kiselina utvrđena je jetkanjem gleđi 37%-tnom fosfornom kiselinom kroz tri minuta, koja je prethodno tretirana preparatom fluora. Površina cakline analiziram a je SEM tipa JOEL T-20. Kod aplikacije NaF koncentracija fluora u gleđi je bila 850 ppm, a nakon aplikacije Fluor-protektora 2327 pipm. Posle aplikacije Aminfluorida koncentracija fluora bila je 5745 ppm što je za 2,5 puta veća koncentracija nego nakon Fluor-protektora. Gleđ tretirana Aminfluoridom bila je i najotpornija na delovanje kiselina.The effects of three fluor preparation (NaF, Fluor-Protector and Aminofluoride) on the enamel of permanent teeth has been studied by determinig the fluor concentrations in the enamel surface layer and the resistance of enamel to the effects of acids. The fluor preparations were applied to intact extracted teeth. Fluor concentrations were determined in the enamel samples using a Bedkman electrode with pH meter for fliuorides. Acid resistance was established by etching the enamnel samples, previously treated with fluor preparations, with 37% phosphoric acid for three minutes. SEM of type JOEL T-20 was used for the analysis of enarnel surfaces. Following the application of NaF the enamel fluor concentration was 850 ppm, following the application of Fluor-Protector 2327 ppm, while after the application of Amlinofiuoride it was 5745 ppm, i.e. 2.5 times higher than after using Fluor-Protector. The enamel samples pretreated with Aminofluoride also showed the highest resistance to acids