I brfed 3 babies long term. Baby #2 developed dental caries very soon after she developed teeth! <g> We had the restorative work done, under general anesthesia when she was about 2 1/2 (a *most* unpleasant experience). She is now 17 and hasn't had *one* cavity since. Interestingly, I had a major virus during the first trimester of pregnancy with her. Further, she's my high-need as well as allergic kid (& I'm sure could have a DX of ADHD. Though the dentist urged me to wean immediately, I, frankly, credit the long-term brfeeding not with causing her problem--in light of several other possibilities--, but rather with giving her such great teeth in the long term. Both other babies grew up to have great teeth (as does their brfed mom, but not their bottlefed dad)--Nancy