机体内的元素各具有独特的生理生化功能,其中钙,镁、磷不但是骨骼和牙齿的组成部分,而且是某些酶活化过程中不可缺少的元素。钾、钠、钙、镁由于它们的电化学功能和重要的代谢作用,因而是机体内的基本元素。锌、铜、铁均能通过一些重要的酶和蛋白质而发挥其生理生化功能。氟也是机体所必需的元素,适量的氟对牙齿和骨骼的生长发育有促进作用。在正常情况下, Elements of the body each have a unique physiological and biochemical functions, of which calcium, magnesium, phosphorus is not only part of the bones and teeth, but also an essential element in the activation of certain enzymes. Potassium, sodium, calcium and magnesium are basic elements of the body due to their electrochemical functions and important metabolic activities. Zinc, copper and iron can exert their physiological and biochemical functions through some important enzymes and proteins. Fluorine is also an essential element of the body, an appropriate amount of fluoride on the teeth and bone growth and development have a catalytic role. under normal circumstances,