Coconinoz,
As a raw vegan and having practiced Victoria Boutenko's book, "Green for Life," I have much experience with acidic saliva and rotted teeth. Nothing I did as a raw vegan corrected the condition, not even green smoothies, except for drinking fizzies made of lemon juice and baking soda. And that was immediately afterward and short-lived. My teeth continued to get clearer and eventually the clear spots disintegrated. They were also very tender around the gums. Since going raw paleo, they look somewhtat better and feel a whole lot better.
I don't have test strips handy at the moment but last I checked, my saliva was alkaline. Green smoothies never did anything for my saliva's alkalinity in the long run, only temporarily. After everything I'd read, I couldn't believe it when I saw that eatiyng raw meat actuallly made my saliva alkaline!
As for lower stomach pH, anything made from wheat will make my stomach so acidic that
I'll vomit. In that regard, wheat's not good for teeth either.