フッ素イオン電極法の衛生学的応用 (F Series NO. 14)

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タイトル別名
  • Application of fluoride electrode to analysis of environmental and biological samples (F Series No. 14)
  • フッソ イオン デンキョクホウ ノ エイセイガクテキ オウヨウ 3 サンショクホウ セイケンホウ ニ ヨル ヒョウソウホウロウシツ ノ ヨウカイリョウ ト フッソリョウ トクニ キョクショ フッソ トフザイ ト ノ カンレン ニ ツイテ F Series 14
  • 3rd Report: Fluoride analysis of surface enamel using acid etching in vitro and in situ (Biopsy) with particular references to topical fluoride application
  • 第3報酸蝕法 (生検法) による表層琺瑯質の溶解量とフッ素量特に局所フッ素塗布剤との関連について

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説明

In order to compare the effectiveness of several topical fluoride application procedures, the enamel biopsy was applied to determine the removed fluoride and calcium by acid etching. The biopsy was carried out with the following technique; in the middle area of the labial surface of deciduous or permanent incisors, the acid etching was made with a filter paper disc (∅ 5mm) containing perhydrochloric acid (2M). The disc was removed and shaken in distilled water and the fluoride was determined by a fluoride electrode using a microsample dish.<BR>The difference between the mean fluoride contents of deciduous and permanent teeth was not significant ranging from 363 to 540 ppm. There was no increase of fluoride levels of surface enamel with the increase of age.<BR>The effect of topical fluoride application was compared on extracted teeth between the pretreatment by either neutral or acidified sodium fluoride or stannous fluoride. The largest retention of fluoride in surface enamel was found after the treatment with phosphate-fluoride solution at pH 3 and the removed calcium by acid was also lowest by this procedure.

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