Background and Aim: The amount of fluoride uptake by
teeth is considered as to be a criterion in the cariostatic properties of
dental restorative materials. The aim of this study was to determine the amount
of fluoride uptake by enamel of deciduous teeth from 3 types of self cured
glass ionomers: Fuji II ( GC Japan), Riva self-cure(SDI Australia) and SDS(Iran
).
Materials and Methods:This experimental study was conducted on thirtyprimary molars which wererandomly divided into 3 groups. Each tooth
was divided into buccal and lingual halves .Fuji II Glass-ionomer (GC Japan),
Riva self-cure (SDI Australia) and SDS (Iran ) were placed randomly on the
surfaces of teeth in case group. All subjects were stored in artificial saliva
(without fluoride) for a month and samples were obtained from each subject
using Acid etch biopsy technique. The amount of fluoride and calcium in sample
solutions were measured by potentiometer and atomic absorption
spectrophotometer. The results were analyzed by t-test and ANOVA statistical
tests.
Results: This
study indicated that the amount of fluoride uptake by enamel of deciduous teeth
from Fuji II Glass-ionomer was (146.85 ± 15.68 ppm which was significantly is
higher than fluoride uptake from riva self cure (40.67±5.34 ppm) and SDS
(83.68±6.40ppm) (P<0.001).
Conclusion: Fluoride uptake
by enamel of deciduous teeth was higher from Fuji II Glass-ionomer (GC Japan)
in comparison with Riva self-cure(SDI Australia) and SDS(Iran ).