Let me offer you some hope. Nikko had two double canines in the bottom row. I haven't had him neutered and was facing the same concern. He is 1 year and 2 months old and yesterday while playing with him I just noticed one of the canines finally fell out!!
I was so overjoyed. I haven't neutered him for concerns of putting him under and those baby teeth were really starting to make me worry. Some other YTers on here have also had their babies lose teeth well after a year old, so don't worry. Keep them playing and chewing and eventually they'll fall out on their own.
