الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
Fluoride dentifrices are considered to be mainly responsible for decline in dental caries observed in last decades either in developed or developing countries .Objective: To compare fluoride concentration in saliva after teeth brushing using dentifrices with different types and concentrations of fluoride. Subjects and Methods: Seventy five children ranging in age from eight to ten years were randomly divided into five groups according to type of dentifrice used (NaF 500ppm , NaF 1450ppm, SMFP 500ppm, SMFP 1450ppm and non-fluoridated dentifrice ). Salivary fluoride levels prior to brushing, 5, 30 and 60 minutes after brushing were estimated. Results: For all groups, there was significant increase in mean fluoride concentration after 5 minutes. from 5 to 30 minutes, significant decrease occurs. Further significant decrease was observed from 30 to 60 minutes. After 5 minutes,( NaF 1450 ppm) showed the highest mean fluoride concentration then ( SMFP 1450 ppm) this was followed by ( NaF 500 ppm)then (SMFP 500 ppm) and finally control group was the lowest .Conclusion: After brushing, there is positive correlation between fluoride concentration of dentifrice and the salivary fluoride level.