Yeah... I think it might be the novelty of it that is making her do it.

Ambah - I'm pretty sure her next two bottom teeth are going to try and make their ascent in the near future but I am not sure if they are causing the grinding. I think it might be just for fun?? Hmm... who knows!

Melinda - good point about drawing attention to it by telling her "no". I guess we just have to grin and bear it for a while. I'll still keep the dummy handy tho. It's pretty cringe-worthy!!

Glad to know it's fairly common tho! Thanks guys!