Is anyone unaware of a single advantage aside from the fact that fluoride does indeed swap with calcium in the tooth enamel apatite and thereby increase the lat

Is anyone unaware of a single advantage aside from the fact that fluoride does indeed swap with calcium in the tooth enamel apatite and thereby increase the latter's resistance to acid attack? Given the prevalence of fluoride in toothpaste, why mass 'medicate'? The experts consulted are one with those folk who think that stuffing mercury amalgam into a permanent location a few centimeters from the brain is a good idea. Given the biochemistry of Hg, it's not and an increasing number of dental professionals are understanding that.