Mottling of teeth is due to the presence of which of the following chemical element in drinking water?
A
Boron
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B
Chlorine
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C
Mercury
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D
Fluorine
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Solution
The correct option is D Fluorine Mottling of teeth is also called as dental fluorosis. It is a developmental disturbance of dental enamel caused by the consumption of excess fluoride during tooth development. Therefore, the correct answer is option D.