I just had my 6 month old Chihuahua mix in for the removal of 2 incisors that erupted straight out vs. down, and a milk tooth canine which didn't fall out. X-rays were taken, and it showed her adult canine teeth under the gums. My vet thinks the incisors prevented their coming in, and feels they may descend now that there is room. My concern is what if they don't? I've read up on potential problems, and while my normal thought process is "if it isn't broke, don't fix it," should I have them removed if they don't come in?