So I stumbled upon a blog for a Doctor named Ellie Phillips. Her blog is titled Ask Dr. Ellie and it appears as if people ask her questions related to dental health.
It seems as if her blog helps serve as a platform for her to promote her company zellies.com. This company sells mints and gum that contains xylitol.
Dr. Ellie is a DDS and does provide advice, perhaps you may find it helpful or perhaps it will conflict with what your dentist has told you.
One thing to note is that xylitol is poison to dogs be careful if considering using xylitol.