The common cause of orthodontics is uneven or protruding teeth. Most orthodontists rely on tooth extraction to make room for the displacement and arrangement of the whole row of teeth. If the teeth are slightly uneven, the teeth are big enough or the gap between the teeth is large, molars can generally be used instead of tooth extraction. I don't think you need to worry too much about not pulling out your teeth. The key is to get the best results. Tooth extraction will not affect dental health. Maybe you are afraid of pain, but if you make up your mind, it won't hurt very much, because I know that teeth play a very important role in a person's overall image.