The key to Prodentim effectiveness lies in its probiotic formulation. Your mouth, like your gut, hosts a diverse community of bacteria. While some bacteria are beneficial, others can contribute to oral health problems such as cavities, gum disease, and bad breath.key to Prodentim's effectiveness lies in its probiotic formulation. Your mouth, like your gut, hosts a diverse community of bacteria. While some bacteria are beneficial, others can contribute to oral health problems such as cavities, gum disease, and bad breath.