I had 8 teeth removed. My othodontist wanted to take out 4 at the sides to straighten my teeth. Then my dentist suggested taking out my second molars, which needed crowns, and pulling my wisdom teeth along to replace them. I went with that suggestion, even though the orthodontist said he could only move the wisdoms half way over into the space created. I now think it was a big mistake, as I find the gaps between my teeth wisdoms and the first molars huge and its difficult to eat.