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アブストラクト（32巻1号：神奈川歯学）
Japanese
| Title ： | フッ化物洗口後の口腔内フッ素保持に関する研究 |
|---|---|
| Subtitle ： | 原著 |
| Authors ： | 川村和章, 飯塚喜一 |
| Authors（kana） ： | |
| Organization ： | 神奈川歯科大学口腔衛生学教室 |
| Journal ： | 神奈川歯学 |
| Volume ： | 32 |
| Number ： | 1 |
| Page ： | 25-37 |
| Year/Month ： | 1997 / 6 |
| Article ： | 原著 |
| Publisher ： | 神奈川歯科大学学会 |
| Abstract ： | 「はじめに」 う蝕の発生には宿主(歯と唾液), 微生物(プラークの微生物叢), 食餌性基質ならびに時間の四大要因が関与しているとされており, 世界中で各国の実状に合わせた対要因別の予防方法が考案され実施されてきた. わが国では, 特にブラッシングの方法, 砂糖摂取の量ならびに回数の制限に関する教育・指導など, 微生物叢やその基質という二つの要因に対するアプローチが主として行われてきた. その結果, 歯科疾患実態調査によると, 調査を重ねるごとに歯みがきを実行する者の割合と1日の歯みがき回数が増加しており, その実行状況は良い方向に向かっている. また, いわゆるう蝕予防に成功している諸外国の年間(1991年)一人当たりの砂糖消費量はオーストラリア54.3kg, スウェーデン44.0kg, フィンランド42.2kg, アメリカ31.5kgであるのに対し, 日本は23.0kgに抑えられており, 砂糖の摂取量も諸外国と比較して決して多いというわけではない. |
| Practice ： | 歯科学 |
| Keywords ： | フッ化物洗口, 唾液, 尿, プラーク |
English
| Title ： | Studies on Fluoride Retention in the Mouth after Fluoride Mouthrinsing |
|---|---|
| Subtitle ： | Original article |
| Authors ： | Kazuaki KAWAMURA, Yoshikazu Iizuka |
| Authors（kana） ： | |
| Organization ： | Department of Dental Health and Public Health, Kanagawa Dental College |
| Journal ： | Kanagawa Shigaku |
| Volume ： | 32 |
| Number ： | 1 |
| Page ： | 25-37 |
| Year/Month ： | 1997 / 6 |
| Article ： | Original article |
| Publisher ： | Kanagawa Odontological Society |
| Abstract ： | [Abstract] Fluoride mouthrinsing is one of the effective caries preventive measures that can be employed as a public health care program. Safety and effects of this method have been shown in many studies. Similar levels of caries preventive effects are observed even with different fluoride concentration and different numbers of mouthrinsing. Since caries preventive effects are most likely dependent on the degree of fluoride retention in mouth, we examined the fluoride level in mouth after 30 seconds of mouthrinsing with fluoride at concentrations used in the daily method (100, 200, 300, 400, 500ppm) and also after 1 minute of mouthrinsing with fluoride at the concentration (900ppm) used in the weekly method. The amount of fluoride retained in mouth was estimated by measuring the fluoride concentrations in saliva and dental plaque. The fluoride level in the urine was also measured and used as an indirect parameter of residual fluoride after mouthrinsing. Until 2 hours after mouthrinsing, the fluoride concentration in saliva depended on the fluoride concentration in the mouthrinsing solution, but after that it no longer showed clear dependence on the fluoride concentration. With a solution containing 900ppm fluoride, however, the fluoride concentration remained significantly higher than the baseline level. Analyses of variance of the area under the curve (AUC) of fluoride content in saliva between 0 and 4 hours after mouthrinsing showed significant effects of the fluoride concentration in the mouthrinsing solution. The fluoride concentration in dental plaques after mouthrinsing with distilled water was 34.3ppm in average, whereas it was 395.2ppm after mouthrinsing with 900ppm fluoride. Thus the residual concentration of fluoride in dental plaques after mouthrinsing with fluoride depended on the fluoride concentration of the mouthrinsing solution. The amount of fluoride excreted into the urine by 1 hour after mouthrinsing with fluoride solution was 1.89 to 7.19% of the residual fluoride in mouth after mouthrinsing. When the same amounts of fluoride as those of the residual fluoride in mouth were swallowed, 9.87 to 16.53% of the fluoride taken in was excreted into the urine by 1 hour after drinking, indicating that in the case of mouthrinsing considerable amounts of fluoride are retained in mouth. These results suggest that saliva and dental plaque are important fluoride reservoirs and that weekly mouthrinsing with 900ppm fluoride, which showed better fluoride retention than daily mouthrinsing with lower fluoride concentrations, may be equally effective in caries prevention. |
| Practice ： | Dentistry |
| Keywords ： |
