アブストラクト（49巻1号：神奈川歯学）

神奈川歯学

Japanese

Title　： 某小学校におけるフッ化物洗口によるう蝕抑制効果
Subtitle　： 原著
Authors　： 川田和重, 宋文群*, 戸田真司*, 荒川浩久*
Authors（kana）　：
Organization　： 神奈川歯科大学健康科学講座口腔保健学分野, *神奈川歯科大学大学院口腔衛生学講座
Journal　： 神奈川歯学
Volume　： 49
Number　： 1
Page　： 8-15
Year/Month　： 2014 / 6
Article　： 原著
Publisher　： 神奈川歯科大学学会
Abstract　： 「緒言」フッ化物洗口は1946年から試験研究が始まり, 1965年にフッ化物局所応用の中で最も公衆衛生的に優れた方法として確立され, 50年近く応用されている. その間, フッ化物洗口による多数の成果が報告され, 子どものう蝕を15～45%抑制する効果が証明されている. フッ化物洗口には, 主に0.05%のNaF溶液で毎日1回ずつ洗口する毎日法と, 0.2%のNaF溶液で週に1回ずつ洗口する週1回法がある. Ripaらの0.2%(900ppm F)中性NaF溶液を用いた週1回法の研究によれば, 小学1～6年生を1～5年間追跡した結果, 5年間のう蝕抑制率は45.3%(DMFT)と47.4%(DMFS)であった. また, フッ化物洗口プログラムに参加する子どもの年齢が低く, 洗口期間が長いほど, う蝕予防効果が大きかったことも報告されている. 一方, 平成14年度(2002年)の静岡県における12歳児の一人平均う蝕歯数(DMFT指数)は1.9であり, 同年度の全国平均2.3を下回っていた.
Practice　： 歯科学
Keywords　： フッ化物洗口, う蝕抑制効果, CO(要観察歯), う蝕格差

English

Title　： Caries inhibitive effect through fluoride mouth-rinsing program among a certain elementary schoolchildren
Subtitle　：
Authors　： Kazushige KAWATA, Wenqun SONG*, Shinji TODA*, Hirohisa ARAKAWA*
Authors（kana）　：
Organization　： Division of Oral Health, Department of Health Science, Kanagawa Dental College, *Department of Oral Health, Graduate School of Kanagawa Dental University
Journal　： Kanagawa Shigaku
Volume　： 49
Number　： 1
Page　： 8-15
Year/Month　： 2014 / 6
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] The author introduced fluoride mouth-rinsing program (once a week, 900 ppm F) to a certain elementary school for the purpose of inhibiting permanent tooth caries among schoolchildren as a school dentist. We evaluated the caries inhibitive effect after three and five years from the introduction of this program. We carried out an oral examination by a tooth surface unit for 1st, 4th and 6th grade-schoolchildren in April, 2003 (as a baseline, 365 children), April, 2006 (as after three years, 324 children) and April, 2008 (as after five years, 291 children). We calculated DMFT index, DMFS index, DMFT rate and caries free person rate from these results of the examination. Furthermore, the changes of CO (Questionable caries under observation) surfaces diagnosed at 1st grade in 2003 were followed after three and five years. We compared these calculated numerical values of three and five years after with those of baseline data (as a control group) in 2003 by Kruskal-Wallis test and chi square test. Although mean DMFT among 4th and 6th grade children at baseline were 0.75 and 1.68 respectively, after five years, they decreased to 0.32 and 0.41. Although mean DMFS at baseline were 1.15 and 2.60, they decreased to 0.47 and 0.69. Similarly, although mean DMFT rate were 5.2% and 7.2%, they decreased to 2.2% and 1.8%, and all these differences were significant (P<0.05). Although mean healthy person rate among 4th and 6th grade children at baseline were 66.7% and 47.3% respectively, after five years, they increased to 78.6% and 83.0%. Caries inhibitive effects through fluoride mouth-rinsing program were confirmed from these results. In addition, as for 37 CO tooth surfaces at baseline 1st grade children remained as CO surfaces (27.0%), and changed to sealant surfaces (2.7%), filled surfaces (27.0%) and sound surfaces (43.2%) at 6th grade children after five years. These observations suggest that CO surfaces can be arrested and remineralized surfaces through fluoride mouth-rinsing. Based upon the results we mentioned above, the fluoride mouth-rinsing was recommended for the prevention of the caries.
Practice　： Dentistry
Keywords　：