need to remineralize teeth, wondering about homeopathy?

hello,

me and my daughter both have some brown spots on our teeth that are in the beginning stages of becoming cavities. she is three years old and is afraid of dentists. we are very NATURAL minded people and would like to do everything we can ourselves, at least at this stage. i am most interested in homeopathy for remineralization and am wondering what to take, and the doses. would they be different doses given our age/size difference? also, i have gum disease. is there anything i can take to reverse this?

thanks a lot to anyone who can help!