Toby lost 2 top front teeth. I thought he would go on with no issue but he must be uncomfortable because he has not played as usual today and he will not even take a tendon chew He will bite your fingers but nothing else. So I put a wet wash cloth in the freezer for a bit, I hope that helps. He will not allow you to massage his gums or get close to his mouth unless its to bite or nibble. Poor pup. I hope this doesn't last long.