Dental fluorosis is a cosmetic condition that affects teeth. It’s caused by overexposure to fluoride during the first eight years of life, when most permanent teeth are being formed. Flourosis can be associated with excessive fluoride levels in drinking water or sometimes inappropriate use of toothpastes or mouth rinses. Sometimes, children enjoy the taste of fluoridated toothpaste so much that they swallow it instead of spitting it out. The affected teeth by fluorosis may appear mildly discoloured that only dentists can detect.In more severe cases, the teeth may have stains ranging from yellow to dark brown, surface irregularities or pits that are highly noticeable and difficult to clean. This condition is not painful but can have a psychological effect on an individual due to its appearance. For mild cases, treatment might include teeth whitening or micro-abrasion. But in moderate to severe cases, veneers or crowns may be advised by the dentist.