better teeth brushing

when i was at the dentist last week, i started asking him if the more natural toothpastes, like Tom's, are better or what his thoughts were on it. he didnt' say it was better, but he did add that a lot of them don't have fluoride in them, which is fine, but you should get it in other ways - tap water, foods, etc (apparently most bottled waters don't have fluoride in them, so don't expect to get it from them, and don't use them anyways, the sink is right next to you with free water and i'm guessing you have reusable glasses are in your cabinet). but he did add that the natural toothpastes have xylitol in them, which is a good ingredient, and an even better way to use this toothpaste is to swish around a small amount of peroxide (like in the brown bottle, maybe 99 cents per bottle), before you brush. he said this raises the pH in your mouth and the xylitol reacts better in your mouth and fight tooth decay/bacteria very well this way. he said there's been some studies out that have proven this, but i couldnt find any online. But i did read that xylitol raises the pH of saliva so it changes both the quantity and the quality of saliva, thus aiding the remineralization process. I guess swishing around peroxide prior to brushing just adds onto raising the pH and aiding even more in the remineralization process. either way, thought i'd throw that out there to you.