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以往的报导中,锶对龋的作用是不同的,如何解释这不一致的结果呢?作者根据一种元素的不同盐对龋可能产生不同作用这一理论而设想出了这一试验。本试验选用了氧化锶、硝酸锶、氯化锶、硫酸锶、乳酸锶水合物[Sr(C_3H_5O_3)_2.3H_2O]和氟化锶。实验对象是SpragueDawleg鼠。将鼠随意分组,每组再分成两半,一半在吸乳期间,牙萌出前(3～19天)经食道插管喂给锶盐,剂量为5.0ug锶/10克
In previous reports, the effect of strontium on caries was different. How did you interpret this inconsistent result? The authors hypothesized this test based on the theory that different salts of salt of one element might have different effects on caries. Strontium oxide, strontium nitrate, strontium chloride, strontium sulfate, strontium lactate hydrate [Sr (C_3H_5O_3) _2.3H_2O] and strontium fluoride were used in this experiment. The subjects were Sprague Dawlish rats. The rats were randomly divided into groups of two and divided into two halves. One half was fed with strontium salt via the esophageal cannula before breast eruption (3 to 19 days) during the breast-feeding period at a dose of 5.0 ug strontium / 10 g