Do you have a thumb sucker?

I use to think it was so cute when my son would hold his bear and suck on his thumb. I never really thought how it might effect his teeth until he got a little older and was still doing it. I was reading this article and it said there should be no harm done to their teeth or jaw as long as the permanent teeth have not started to erupt. If you have ever had a thumb sucker you know how hard it is to try and break the habit. In this article it also gives some tips on how to help them stop. :)