Your teeth CAN heal themselves, of course your dentist doesn't want you to know that. Using products with xylitol can help repair cavities and restore the enamel in your teeth. If I start seeing spots on my teeth, I switch to a xylitol-based toothpaste and they go away in a few weeks. Using mouthwash regularly helps too. I let a dentist drill holes in my teeth once, and I swore I'd never let anyone do it again. The fillings he did were bad, and I still haven't gotten them fixed because I don't have time. The last time I saw a dentist was 3 years ago, and that one wanted to drill a bunch of holes, do some kind of procedure called gum planing, and rip out my wisdom teeth, which do NOT bother me at all. I hate dentists-HATE THEM!