UPSC CAPF AC 2017 Paper

Fluoride in toothpaste and drinking water, is like a constant 'repair kit’ that helps to protect teeth against tooth decay. Absence of fluoride is results in mottling of tooth. Dental fluorosis manifests as white mottling of teeth in which noticeable white lines or streaks have joined into larger opaque areas Brown staining or pitting of enamel may also be present. In severe forms actual breakdown of enamel may take place with loss of anatomical structure of the teeth