Peggster, before I knew that I had Lyme's disease I was rinsing my mouth out with non-alcoholic Listerine and brushing my teeth faithfully 3 to 4 times a day. I think this caused me to lose some good bacteria in the oral cavity. Soon after the oral surgery I tested positive for LD and stuck to a Candida diet for several months. I notice that when I have a bad herx tooth and gum discomfort also appears.
As noted from this forum there are dentists out there that understand how this disease affects our teeth and gums. Maybe you can find one in your neck of the woods.
Wishing you well,
Patty