Use Pure Baking Soda To Help Prevent Cavities

Instead of pure toothpaste, substitute brushing with baking soda and a little toothpaste at night. The baking soda will neutralize all but the hardiest acidic saliva. Streptococcus mutans, the bacteria that initiates decay in teeth,  absolutely needs acidic saliva to live, thrive and cause their decay. They have a very difficult time starting decay in a neutral or alkaline environment.

 Dip a wet toothbrush into powered baking soda, add a pearl-size bit of toothpaste for flavor and thoroughly brush every tooth for at least 1 1/2 minutes. Continue dipping as needed.

--Important --we need fluoride in our toothpaste. in order to get sufficient  fluoride  be sure to brush each morning with a fluoride containing toothpaste.
http://www.drcharleshand.com/

How Xylitol chewing gum works and why I like it

Xylitol gum chewed three time a day-gets saliva flowing, chemically helps calcium stay inside of enamel, and kills  Streptococcus mutans -the germ that seems to be causing most cavities.
To purchase Xylitol gum, Google "Xylitol gum" and"Spry" in the  search line. I like the taste of the Spry company's Xylitol gum . This is one site that comes up:

http://www.xlear.com/spry.aspx

    The normal dose is  about 6 gms/day for cavity protection ( about 2 pieces chewed 3 to 4 times each day)
   Here is a link to a great explanation of how Xylitol works to prevent decay:
   http://foreverhealthyandyoung.com/index.php?post=157