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Fluoride retention amounts following toothbrushing and mouthrinsing with a weak fluoride solution
Yuki Arakawa,Wenqun Song,Shinji Toda,Kazuaki Kawamura,Tomoka Kubota,Hirohisa Arakawa 대한예방치과학회 2009 International Journal of Clinical Preventive Denti Vol.5 No.2
Objectives: The aim of this study was to determine the effectiveness of caries prevention from intraoral fluoride retention following tooth brushing with a weak fluoride solution. Methods: Six subjects (average age is 37.5 years old) performed tooth brushing with a weak fluoride solution (100 ppm F as NaF) and fluoride mouth-rinsing (100 ppm F as NaF) as positive control just before going to bed on separate day. At the time of rising in the next morning, the subjects collected their unstimulated total saliva, and we examined salivary fluoride concentration. Two fluoride modalities were performed randomly each three times. Results: The mean salivary fluoride concentrations upon arising were 0.07 ppm (range: 0.01 - 0.22 ppm) in tooth brushing with a weak fluoride solution experiments and 0.14 ppm (range: 0.02 - 0.37 ppm) in fluoride mouth-rinsing experiments. Conclusion: Though salivary fluoride concentrations upon arising after tooth brushing with a weak fluoride solution was lower than after fluoride mouth-rinsing, it was higher than 0.05 ppm of optimal therapeutic level which enhances remineralization. The results suggested that tooth brushing with a weak fluoride solution just before going to bed was effective on caries prevention for young children. On the other hand, salivary fluoride concentrations after fluoride mouth-rinsing was significantly higher than tooth brushing with a weak fluoride solution, since fluoride might be reserved on oral mucous membrane. Objectives: The aim of this study was to determine the effectiveness of caries prevention from intraoral fluoride retention following tooth brushing with a weak fluoride solution. Methods: Six subjects (average age is 37.5 years old) performed tooth brushing with a weak fluoride solution (100 ppm F as NaF) and fluoride mouth-rinsing (100 ppm F as NaF) as positive control just before going to bed on separate day. At the time of rising in the next morning, the subjects collected their unstimulated total saliva, and we examined salivary fluoride concentration. Two fluoride modalities were performed randomly each three times. Results: The mean salivary fluoride concentrations upon arising were 0.07 ppm (range: 0.01 - 0.22 ppm) in tooth brushing with a weak fluoride solution experiments and 0.14 ppm (range: 0.02 - 0.37 ppm) in fluoride mouth-rinsing experiments. Conclusion: Though salivary fluoride concentrations upon arising after tooth brushing with a weak fluoride solution was lower than after fluoride mouth-rinsing, it was higher than 0.05 ppm of optimal therapeutic level which enhances remineralization. The results suggested that tooth brushing with a weak fluoride solution just before going to bed was effective on caries prevention for young children. On the other hand, salivary fluoride concentrations after fluoride mouth-rinsing was significantly higher than tooth brushing with a weak fluoride solution, since fluoride might be reserved on oral mucous membrane.