Could delayed tooth development be a sign of CF? I know this sounds crazy but it is really bugging me. DS#2 is almost 2 (10/19) and he has only 6 teeth plus 2 that JUST broke surface. By this time most toddlers are working on 20-24 teeth. I have "googled" everything I could think of with no idea why this would happen. With the tests still out on CF I though maybe this might be a link.