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Year : 2010  |  Volume : 8  |  Issue : 15  |  Page : 202-208

Effect of Fluoridated and Non Fluoridated Dentifrice on Salivary ph and Salivary Streptococcus Mutans-A Randomized Clinical Trial

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Aims and Objectives: The present study was conducted to study the effect of fluoridated and non-fluoridated dentifrice on salivary pH and salivary Streptococcus Mutans Materials and Methods: The randomized triple blind clinical trial was conducted in preselected 28 hostel inmates (girls=14, boys=14). The study subjects were randomly allocated to test group (n=14) and control group (n=14). The test group was instructed to use the fluoridated dentifrice for the period of 15 days and the control group - the non fluoridated dentifrice. Stimulated saliva was collected from each group at three intervals (before brushing, immediately after the brushing and 1 hr after the brushing) at the end of intervention and tested for salivary pH and Streptococcus Mutans count. Results- It was seen that the salivary pH values recorded before brushing were 6.88 0.09 in the fluoridated group and 6.43 0.06 in the non-fluoridated group. Immediately after the brushing, there was rise in the salivary pH in both the groups (fluoridated group = 9.03 0.11, non- fluoridated group=8.35 0.07). The pH values fell to lower values in both the fluoridated group (8.27 0.07) and non fluoridated group (7.67 0.09) 1 hour after the brushing. The difference in the salivary pH between the two groups was statistically significant at all the three intervals (p<0.05). For the streptococcus mutans it was observed that count in the fluoridated group (6.73 1.76, 2.20 0.58, 4.43 1.15) was lower at all the three intervals as compared to the non-fluoridated group (10.00 2.96, 4.19 1.15, 7.45 2.22) and the difference was statistically significant (p<0.05)

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