Fluoride supplement-induced case reports

Two cases are presented which exhibit classical dental fluorosis in the permanent dentition which is most logically explained by the excessive intake of fluoride. The cases emphasize the narrow therapeutic range of systemic fluorides in children and the need for analyzing samples of local drinking water before caries-preventive fluoride therapy can be initiated. The potential for induction of fluorosis has been increased significantly because of the widespread use of fluoride-containing products as documented in this report. Topical and systemic use of fluoride including dietary fluoride supplements, when used appropriately, are essential components of the prevention of dental caries. However, it is important to recognize the narrow therapeutic range of fluoride for the prevention of caries and the potential of dental fluorosis that results from excess fluoride ingestion. This report describes two cases of mild to moderate dental fluorosis which resulted from fluoride over-supplementation. In one case, no systemic supplement was required; in the other case, the fluoride dosage was excessive.