Can't say that I have had any personal success with recalcification but have heard that it is possible by adding some things to your diet. Listened to an interview on BlogTalkRadio with UndergroundWellness.com and Rami Nagle who wrote a book about stopping tooth decay. You can listen to the interview here - http://www.blogtalkradio.com/undergroundwellness/2010/05/20/cure-tooth-decay-...
"Rami Nagel, author of Cure Tooth Decay, visits Underground Wellness Radio to discuss how to prevent and reverse tooth decay. Rami's books Cure Tooth Decay and Healing Our Children are available for sale at http://www.theuwstore.com.
Hosted by Sean Croxton of Underground Wellness."