生検によるエナメル質溶解性測定の有用性-各種のう蝕活動性試験法との比較
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概要
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The present study was undertaken to compare the <I>in vivo</I> dissolution rate of enamel in acid with four other tests in school children as caries activity tests. Cariostat®, buffer capacity of saliva, plaque scores, and snack intake (in addition to the dissolution rates which were reported previously) were examined in 30 school children when they were 7 and 9 years old. The dental caries was examined by the same examiner every six months from the ages of 7 (1981) to 11 (1985).<BR>The R.I.D. Indices of the upper central incisors and the upper and lower first molars were calculated by comparing each examination with the base lines at 7 and 9 years of age. The results were analysed using the sum of sensitivity and specificity.<BR>The following results were obtained:<BR>1) At 7 years of age snack intake was the most useful of the five tests for prediction of the R.I.D. Index of the lower first molars, but after the age of 9 years it was only useful for prediction of the R.I.D. Index of the upper first molars.<BR>2) <I>In vivo</I> dissolution rate of the lower left first molar and the plaque score of the upper left central incisor at 7 years of age were useful for prediction of the R.I.D. Index of the lower first molars.<BR>3) Cariostat® and the buffer capacity of saliva tended to relate to the R.I.D. Index of all the teeth surveyed.<BR>4) <I>in vivo</I> dissolution rate of the upper left incisor and the plaque score of the lower left first molar were meaningless in predicting the R.I.D. Index.<BR>5) In conclusion, <I>in vivo</I> dissolution rate of enamel in acid of the lower left first molar was the most useful when we predicted the R.I.D. Index of the lower first molars from a relatively low age.
- 有限責任中間法人 日本口腔衛生学会の論文
有限責任中間法人 日本口腔衛生学会 | 論文
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