含氟牙膏在我国已销售多年。近年来一些洋牙膏也在利用多种促销手段抢占中国市场,其中大多含氟。必须指出,这类含氟牙膏并非到处适用。氟是人体必需的微量元素之一,它能增大骨骼和牙齿的强度。人体缺氟会引起龋齿(即蛀牙)。但是如果人体摄入过多的氟,就会导致慢性氟中毒,体内多种酶的活性受干扰,钙、磷的代谢平衡被破坏,出现氟斑牙和氟骨症等病征。氟斑牙也叫氟斑釉和氟牙症,是人体在牙齿发育过程中摄氟过量,造釉细胞受损,钙化障 Fluoride toothpaste has been sold in China for many years. In recent years, some foreign toothpaste is also using a variety of promotional tools to seize the Chinese market, most of them containing fluoride. It must be pointed out that such fluoride toothpaste does not apply everywhere. Fluoride is one of the essential trace elements of the human body, it can increase the strength of bones and teeth. Lack of fluoride can cause dental caries (ie tooth decay). However, if the human body consumes too much fluoride, it will lead to chronic fluorosis. The activity of many enzymes in the body will be disturbed. The metabolic balance of calcium and phosphorus will be destroyed, and symptoms such as dental fluorosis and skeletal fluorosis will appear. Also known as fluoride spot dental fluorosis and dental fluorosis, fluoride in the body during the development of excessive fluoride, glaucoma damaged, calcific barrier