5조 42번 윤희정 (논문2)

239 views
210 views

Published on

Published in: Health & Medicine, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
239
On SlideShare
0
From Embeds
0
Number of Embeds
7
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

5조 42번 윤희정 (논문2)

  1. 1. Association betweenDevelopmental Defectsof Enamel and DifferentConcentrations ofFluoride in the Public WaterSupply 폴리클 5조 42번 윤희정
  2. 2. Objectives The relationship between enamel defects and fluoride consumption To compare the prevalence and severity of developmental defects of enamel (DDE) among subjects whose maxillary incisors developed during periods with different concentrations of fluoride in the public water supply. The aim of this study was to compare the prevalence and severity of DDE in 12-year-old children in Hong Kong in 1983, 1991 and 2001.
  3. 3. Materials and Methods Standarized intra-oral photographs of random samples of 12-year-old children were collected in 1983, 1991 and 2001 in Hong Kong and assessed for DDE by a trained masked examiner. The fluoride concentrations in the public water supply at the times when the enamel on their maxillary incisors developed were 1.0, 0.7 and 0.5 ppm
  4. 4. Results
  5. 5. Result
  6. 6. Result
  7. 7. Result
  8. 8. Conclusion A decrease in the prevalence and severity of DDE among the maxillary incisor teeth of the children corresponded to the reductions in the concentration of fluoride in the water during the time of enamel development.

×