I haven't been to a dentist in almost 10 years...
Now before you all swear that you never want to see me in person, or at least not get within 10 feet of me when I breathe

, I do have pretty healthy teeth. Just a good brushing every day and some mouthwash go a long way.
Dentists are shrewd operators. You don't come in occasionally for a checkup. Everytime you go, you have some huge cavity that needs to be taken care of next week. And I'm pretty sure that these cavities are somewhat related to the myriad of chemicals they use that not only clean the plaque and buildup off your teeth, but most of the enamel as well!
I do have a cavity in my front tooth right now, I can feel it when I drink something cold. But I will probably just make one visit to the dentist soon to have it fixed and that will be the end of that...