Have any of you ever tried making your own toothpaste? Not to be overly picky, but I was wondering if it was possible with some xylitol, calcium carbonate, vegetable glycerin, maybe sodium ascorbate, then a little natural orange oil or flavoring. That way if dd swallows it, she's getting the calcium and vit. C which have to be good for her teeth and gums, plus I think that would raise the pH of her mouth the prevent decay. Anyone?