Bloody hell mate! Exactly what happened to me,I took my 8 month old for a walk about 3 weeks ago and noticed in the roof of his mouth what looked like a white stripe going across from inside of his tooth to the other side,when I looked at it properly I noticed it was a bone so I tried to pull it out and it was jammed,she must of had it in their a good while because her mouth grew over it,i didn't notice because she was eating and drinking fine,anyways strait down vet and it cost me 16 they done the same took it out and a jab,she's fine now just a little dent in the roof of her mouth. Atb