Teeth have caused challenges in my life. First, when my permanent teeth started to come in, I had 7 baby teeth that never loosened up to make room for the next set. I had to have the teeth pulled. By this time, the new teeth were growing into the roof of my mouth. The dentist then had to slit the roof of my mouth to make a route for the permanent teeth to come down. I was tasked with pushing on the big teeth to keep them moving. Not so fun and painful.