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Taeko Osawa,Wenqun Song,Kazuaki Kawamura,Hirohisa Arakawa 대한예방치과학회 2013 International Journal of Clinical Preventive Denti Vol.9 No.4
Objective: To investigate the effects of low-rinsing volume after toothbrushing with fluoride dentifrice (paste and gel dentifrice, 950 ppm F, new products with cationated cellulose and original products) on salivary fluoride retention. Methods: Subjects comprised seven adults with a mean age of 40.8 years. Experimental groups were 1: New paste, rinse once with 15 ml of water, 2: New paste, rinse twice with 25 ml of water, 3: New paste, rinse four times with 30 ml of water, 4: Original paste, rinse once with 15 ml of water, 5: New gel, rinse once with 25 ml of water, 6: New gel, no rinsing, 7: Original gel, rinse once with 25 ml of water. They brushed their teeth for 3 min 30 s with 0.5 g of each dentifrice, after which six samples of unstimulated whole saliva were collected from immediately after brushing (0 min) to after 150 min. Results: A statistical test for the AUC in group 1-4, fluoride retention was significantly higher in group1 and 4 (p<0.01). In group 5-7, fluoride retention was highest in group 6 (p<0.001). As a result of multiple regression analysis with the AUC concerning the factors influencing salivary fluoride concentration, volume of water, baseline salivary fluoride and the amount of fluoride remaining in the mouth were selected as explanatory variables. Conclusion: For both the new and original products, larger rinsing volume and more number of rinses significantly reduced salivary fluoride retention after toothbrushing with fluoride dentifrice, yield to reduction of their cationated cellulose effects.
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.
Fluoride retention amounts following toothbrushing and mouthrinsing with a weak fluoride solution
Yiki Arakawa, Wenqun Song, Shinji Toda, Kazuaki Kawamura, Hirohisa Arakawa 대한임상예방치과학회 2009 International Journal of Clinical Preventive Denti Vol.5 No.1
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.