In scandinavia, kids are also given fluorine pills
With their school lunches? Baloney.
Xylitol has very little - if any - effect on dental health. It's just a sweetener that is not sugar (does not cause karies).
Nope - plaque uptake the xylitol and try to process it as a sugar and fail, exhausting their metabolites and ultimately starving off. Here's the most cited link on PubMed but you're welcome to search all the others, including more recent ones.
The schools aren't investing in the program because somebody's brother owns a chicklet factory - they've demonstrated success with it.
Source: I read peer reviewed real scientific reports.
Except the ones on the topic that are easily to find?