If fluoride fanatics, like Mrs. Firman, really cared about kids teeth they'd be lobbying schools to stop selling candy and pop, & eliminating sugar from their lunch programs, as well as encouraging brushing & flossing at school so that it becomes a lifelong habit. Dentists don't really want kids to have healthy teeth, however, but to become dumbed down obedient cashcows, and fluoride has a known effect in that regard. Supporting fluoridation gives them plausible cred' as advocates for dental health while not actually doing anything to reduce their clientele. 
Mrs. Firman is apparently paid handsomely by Delta Dental to lobby for fluoridation, but I can't find any evidence she does anything else to reduce tooth decay, such as lobbying schools to eliminate sugar or make brushing and flossing part of their curricula. Fluoride, in large enough quantities, is a poison, so tailoring the dose to the individual is critical, yet fluoridation of water is a one-size-fits-all dose. It's a scam.