|
KMID : 0355419990230020191
|
|
Journal of Korean Academy of Oral Health
1999 Volume.23 No. 2 p.191 ~ p.202
|
|
|
Inhibitory effect of fluoride administration on enamel erosion by commercial cooling beverages
|
|
1송재상/1Jae Sang Song
1박명자/2송근배/1Mung Ja Park/2Keun Bae Song
|
|
|
Abstract
|
|
|
-Abstract-
The purpose of this study was to investigate the inhibitory effect of systemic fluoride
administration on tooth enamel dissolution by commercial beverages. 3 week-old 60
female Spraue-Dawley strain were divided into four groups and given the following
dosage of fluoride in the drinking water: 0, 1, 5 and 50ppm for six and twelve weeks ad
libitum. Three kinds of beverage were selected for test medium and enamel slabs of rat
incisors were dipped for 60 and 120 minutes in each beverage. Surface microhardness
was examined before and after dissolution with beverage. The morphologic changes
were also observed with Scanning Electron Microscopy(×2,000 magnification). All
collected data were analyzed using the SAS package. Differences between groups were
compared by the one-way ANOVA, Duncan's multiple range test and ANCOVA.
Corresponding p-values were considered significant at the values less than 0.05. The
obtained results were as follows:
1. Surface microhardness was significantly increased at 1ppm group than control rat
both at the 6 and 12 weeks administration of fluoride. Surface microhardness of high
dose groups were also proportionately increased with increasing concentration of fluoride.
2. There were statistical differences of surface microhardness with longer periods of
fluuoride administration and higher concentration of fluoride in the beverage B and C,
but not appeared in the beverage A.
3. There was a negative correlation between morphologic changes and microhardness of
rat enamel surface after dissolution in the commercial beverage.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|