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RISS 인기검색어
- 검색키워드
- 저자 : Taeko Osawa (검색결과 2 건)
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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.
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Feasibility Investigation of Low-Volume Rinsing with Fluoride Dentifrice
Taeko Osawa,Wenqun Song,Azusa Ishiguro,Masako Nakamukai,Naoko Ishida,Hirohisa Arakawa 대한예방치과학회 2013 International Journal of Clinical Preventive Denti Vol.9 No.3
Objective: We conducted a survey to assess the tooth brushing habits of general consumers using dentifrice, and to confirm the feasibility of low-volume rinsing using newly developed NaF dentifrice. Methods: Thirty-six adults from Marketing Service Co., Ltd., volunteered this study. As measurement 1, subjects brushed their teeth in their accustomed manner, while investigators measured the following brushing behaviors: (1) amount of dentifrice used; (2) brushing time; (3) number of times subjects spat while brushing; and (4) volume, time, number of rinse after brushing. As measurement 2, subjects brushed their teeth according to the specified method using each of the two different dentifrices (P and Q). After brushing, subjects completed an absolute evaluation for each dentifrice, as well as a relative evaluation comparing the two dentifrices. Results: Measurement 1: Measurement items other than rinsing behaviors were judged as being almost optimal. Measurement 2: In tests of significance on the distribution of number of people who chose each response, the ratio of subjects that were not aware of residual dentifrice after rinsing and did not have an unpleasant feeling after rinsing for dentifrice P rather than dentifrice Q were 25.8% and 22.6%, respectively. Both ratios were 0 for Q, showing that these factors were less prevalent for P (p<0.01). Conclusion: The actual tooth brushing behaviors with dentifrice were largely suitable, except for rinsing habits after brushing. Our results for measurement 2 suggest that weakening the flavor of dentifrice P may be useful for achieving low-volume rinsing.
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