I was in the last CPhI fair in Barcelona, the largest pharmaceutical fair in the world.
There I could find some mention to chewing gum in some of the booths.
For instance, the gum base supplier “CAFOSA” was presenting a tabletted chewing gum with probiotic function. The product contains Lactobacillus Patented Strains (AB-Dentalac) as active ingredient and has an oral care claim associated to it.
Extract from Cafosa’s brochure: AB-DENTALAC has bactericidal activity against most common oral pathogens and helps restore the protective oral flora by competing against pathogenic bacteria and disrupting their adhesion to the different tissues in the oral cavity.