Hi Anon..here is the explanation from a good dream dictionary on-line:
Losing Teeth: Look and see if you are losing or abusing power and control in any area of your life. The other thing it can indicate is that you are in a situation where you cannot assert yourself.
(*this is interesting Anon! It goes with your 'baby' dreams above, I just realized. If you are feeling like you cannot 'assert' yourself (teeth falling out dreams) then you really DO need to give birth to your inner male (baby boys)....your assertiveness is at it's early stage of development...but at least it is developing! If you realize this, then it can develop faster....)