I went for about 12 years without a dental check up until last February when my then girlfriend-now fiancee basically forced me to go. The first time, I had to do a periodontic cleaning becuase I had so much tartar and plaque buildup, and my gums bled like a Middle Eastern oil field.
Around my 6 month check up last September, I had just started doing paleo stuff the first time around and went back and had a perfect cleaning. Between my dentist and hygienist being really good at their jobs and switching my eating habits, I've had perfect checkups the past two visits.
I'm skeptical of natural toothpaste, though. I tried it once and it felt like it left a hippy-film on my teeth. No thanks, I'll stick to Crest.