I happily now refuse to go to a dentist unless my teeth hurt (although I do try to look after them and use mouthwash etc)
I've been dragged to the dentist about 5 times in my entire life. All my friends/in laws etc do everything right and eat the right things and visit every 6 months and have tons of fillings and work done.
My mother had a problem with a root canal when she was young and wouldn't put me through that. So she never took me. Everytime I get dragged in (due to change in school, hubby etc) the only thing they can come up with is that since I never had braces as a kid my teeth aren't cosmetically straight. And yet I do all of the unadvised things, eat the wrong stuff, don't floss etc.
The only thing that mucks up my teeth is a cleaning because afterwards they take about 6 weeks to stop hurting. Oh, and my wisdom teeth although when they are through its find again - its just when they are trying to rearrange the gum line a little as they grow.