2018: Fluorosis, TH, and Tooth Eruption

The root of all adverse health effects

2018: Fluorosis, TH, and Tooth Eruption

Postby admin » Tue Jan 15, 2019 6:27 pm

Kumar V, Chahar P, Kajjari S, Rahman F, Bansal DK, Kapadaia J MH - "Fluoride, Thyroid Hormone Derangements and its Correlation with Tooth Eruption Pattern Among the Pediatric Population from Endemic and Non-endemic Fluorosis Areas" J Contemporay Dental Practice 19(12):1513-1517 (2018)
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ABSTRACT

Aim: To comparatively evaluate the status of fluoride in the
body with thyroid activity in the pediatric population of endemic
fluorosis areas. The present study also attempted to elucidate
whether any correlation exists between fluoride and thyroid
hormone derangement with delayed tooth eruption .

Materials and Methods: A total of 400 pediatric subjects were included in the present study. All the patients were divided into
two broad groups; groups A and B. Group A included 200 subjects who belonged to the endemic fluorosis area while Group B
included remaining 200 subjects, who belonged to the fluorosis non-endemic area. Group B subjects were taken as control.
Group A subjects were further divided into two study groups as follows: Group A1: 100 Paediatric subjects with dental fluorosis,
and Group A 2: A total of one hundred pediatric subjects without dental fluorosis. Dean’s index of fluorosis was calculated in
all the patients. Blood samples were collected and were sent to a laboratory for assessment of thyroid hormone levels. All
the results were subjected to statistical analysis by Statistical Package for the Social Sciences (SPSS) software.

Results: Mean thyroid stimulating hormone (TSH), water fluoride levels, urine fluoride levels and serum fluoride levels
of subjects in group 1 were found to be significantly higher than that of subjects of group 2. Delayed tooth eruption was absent
in subjects of group B while it was present in 100 subjects of group A. Thyroid hormone level derangement was seen in
54 percent subjects of group B, while it was seen in 67.5% subjects of group A.

Conclusion: Positive correlation exists between fluorosis and thyroid functional activity. However; the tooth eruption pattern
is independent up on the thyroid hormone derangement.

Clinical significance: Delayed tooth eruption and alteration in thyroid hormone levels can occur in subjects of the endemic
fluoride areas. Therefore, adequate measures should be taken for controlling such adverse effects.
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