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"The study was a quasi experimental one, supported by microbilogical data. The respondents had been purposively chosen from three Bekasi elementary schools in 2002, with 72 children as treatment group and 72 children as control group. data collected included oral and laboratory examinations. Dental health status of permanent dentition was determined using DMF-T index. The data was collected at the start and 120 days after intervention. Data analysis was by paired t-test for before and after treatment, and by independent t-test for comparing treatment and control. For the average the means 2 samples t-test difference was used, and for the average difference between the same groups the mean one sample t-test was applied. For the nominal scale proportion difference the likelihood ratio test was applied, and for the ordinal scale the nonparametric one-way Anova was used. Simple regression test was used to determine the relation between dependent and independent variables. The results of the study show decrease of S. mutans colonies in saliva after treatment (p= 0,001) and decreasing DMF-T score for treatment group. In control group, there is no decrease in S. mutans colonies, but increasing DMF-T score was found. The conclusion was that glass ionomer cement fillings can inhibit S. mutans growth in saliva."

"Oral dental epidemiological studies have shown the increasing of prevalence of dental caries and periodontal disease. This research was to find out base line data, among two groups of children from Urban and Rural of 20 elementary schools in sub district of Bekasi, West Java. Samples of 2205 children by the classes II, IV, V were observed 1065 in Urban and 1140 in Rural groups. The results show that prevalence of dental caries was 97,5%, DMF-T in urban 2.225 and Rural 2.571 were significantly higher (p=0.0001) and those OHI-S in Urban 1.696 were better than rural 2.050, (p=0.0000)."