I appreciate your enthusiasm, but did you consider that many of us have already considered the toothpaste? A few people here are freaking brushing their teeth with water. I have found a gentler toothpaste called Biotene that I like, it doesn't contain sodium laureth sulfate, and it contains flouride which I think should be in toothpaste. I had a difficult time finding natural toothpastes that fulfilled both of those criteria. Usually they had neither or both.
As a rule with what we have, it helps to consider all possible allergens and irritants. Toothpaste is just one of them.