Wow, I couldn't believe this question. I'm going through this right now, also, with my little Lee. He is 6 1/2 months and he has double canines top and bottom. The vet said the baby teeth should come out now because we don't do orthodonics on dogs and the adult teeth won't come in right to match up with the top teeth. I'm not having him neutered so there's no reason to wait. He's going in Monday morning. The estimate was about $200 for 4 teeth. It will be more if they see more baby teeth. Don't think I didn't reach in there and wiggle those baby teeth. LOL! Thought just maybe.......