Dental fluorosis in teeth calcification period (seven or eight before), because of the high fluoride content in drinking water as a result of enamel hypoplasia dental disease. Mild dental fluorosis of enamel surface chalky patches, there is still hardness and gloss enamel; moderate dental fluorosis of the enamel plaque appear brown or dark brown, smooth, hard enamel still; most severe dental fluorosis teeth appear brown or even full-mouth dental plaque, while linear, point-like or fissure-like defects, depression has deep dyeing, teeth lose their luster.
Risk of dental fluorosis:
1. Eruption of the enamel in the same period on the chalk color to brown patch, but also complicated with severe enamel defects in real terms. Their often dental equipment clinically mild, moderate and severe and is divided into chalk-type (mild), color type (moderate) and defect type (severe) of three types.
2. Poor tolerance of friction, but strong resistance to acid, which is the anti-caries dental fluorosis and strong reasons.
3. Dental fluorosis are generally found in permanent teeth, but if excessive fluoride intake, exceeding its screening function of the limit, also irregular teeth on the surface now.
4. Patients with severe chronic fluorosis, may have proliferative changes of bone, periosteum, ligaments, etc. can be calcified, and resulting in the waist, legs and joints symptoms. Acute poisoning symptoms are nausea, vomiting and diarrhea. As the combination of calcium and Wisdom teeth pulled out all worry lying mouth fluoride to form insoluble calcium fluoride, causing muscle spasms, prostration, and difficulty breathing and even death.
5. Affect the appearance of dental fluorosis, dental fluorosis so many patients there is a certain social psychological barrier.
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