Effect of drinking water change upon the dental fluorosis / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 139-141, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-263436
ABSTRACT
<p><b>OBJECTIVE</b>To assess changes in prevalence and degree of dental fluorosis in individuals born before and after the introduction of water with 1.2 mg/L fluoride instead of water with 2.0-10.0 mg/L fluoride previously used in Da Li County in China.</p><p><b>METHODS</b>The students (n = 291) were divided into 2 groups. The dental fluorosis was scored according to Dean's classification. The statistical analysis was performed by t-test and chi(2) tests.</p><p><b>RESULTS</b>The prevalence of dental fluorosis was significantly lower in the group of the students drinking water from the new well (group 1) as compared to the group of the students drinking the old water (group 2), i.e. 48.8% versus 87.2% (P < 0.01). The percentage of moderate to very severe fluorosis was 13.9% and 0 in group 1 as compared to 32.0% and 8.8% in group 2. The fluorosis community index (FCI), defined by Dean, in group 1 and 2 was medium (1.01) and marked (2.12) respectively.</p><p><b>CONCLUSIONS</b>The results showed that (1) The prevalence of dental fluorosis was significantly lowered by the new source of drinking water. (2) Drinking water, even with 1.2 mg/L fluoride, may cause dental fluorosis during the period of tooth mineralization.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Water Supply
/
China
/
Sex Factors
/
Epidemiology
/
Prevalence
/
Fluorides
/
Fluorosis, Dental
Type of study:
Prevalence study
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2004
Type:
Article
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