Abstract
Two methods have been used in applying fluoride containing compounds as agents to prevent caries in humans. One is to use few applications at high concentrations, and the other is to use multiple applications at low concentrations.
In this experiment, the effectiveness of preventing caries and restraining the progress of caries of (NH4)2MoO2F4 and SrTiF6, both which were developed as fluoride containing compounds and can be utilized according to a previous investigator's method, was tested using rat experiments. APF and Ag(NH3)2F were tested for comparison.
The results showed that both (NH4)2MoO2F4 and SrTiF6 were as effective as APF in preventing caries. Furthermore, it was found that both agents checked the progress of caries to the same extent as 38% Ag(NH3)2F.