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KMID : 0355420000240010085
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Journal of Korean Academy of Oral Health
2000 Volume.24 No. 1 p.85 ~ p.105
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Evaluation of preventive effect of dental caries on deciduous teeth using caries activity tests and topical fluoride application
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1/2김진범/12Jin Bom Kim
1나수정/1조영임/1Su Jung Ra/1Young Im Cho
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Abstract
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The objective of the research was to evaluate the effect of caries prevention on
deciduous teeth through caries activity tests and topical fluoride application to develop
the efficient caries prevention strategy applicable to Korean children. First, the dental
examination was done to detect caries for 2-6-year-old children at a children's house.
The modified Snyder test to detect the ability of acid production by dental plaque using
Snyder test medium and the test for the number of mutans streptococci in the saliva
was applied to the 2-5-year-old children to predict the probability for future caries.
With consideration of the results from caries activity test, professional topical fluoride
application and fluoride mouthrinsing therpy was applied for 1 year. More frequent
fluoride application was used for the children who showed the higher probability of
future caries. After 1-year preventive therapy, the effect of caries prevention on
deciduous teeth was evaluated quantitatively by the caries activity tests and dental
examinations.
The results were as follows :
1. The reduction rate of dmfs index was 18.23% at 5-year-old children, 23.22% at
6-year-old children.
2. The reduction rate of pit and fissure surfaces among dmfs index was 19.62% at
4-year-old children, 13.53% at 5-year-old children, 6.92% at 6-year-old children.
3. The reduction rate of smooth surfaces among dmfs index was 21.57% at 5-year-old
children, 34.52% at 6-year-old children.
4. The 1-year-increment of dmfs was significantly positive in proportion to dmfs index
at basic examinations.
5. The dmfs index of basic examination was correlated significantly with the result of
acid production test by dental plaque at 3-, 4-and 5-year old children. The number of
mutans streptococci in the saliva in was significantly positively correlated with dmfs
index of basic examination at 5-year old children.
6. The degree of acid production by dental plaque at basic examination was
significantly positively correlated with the 1-year increment of dmfs index at 3-and
4-year old children. The number of mutans streptococci in the saliva at basic
examination were significantly positively correlated with the 1-year increment of dmfs
index at 5-year old children.
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