<s>[INST] I have been told that I need four teeth extracted and that they would not be replaced however I thought that the gaps would need to be filled to avoid my other teeth moving which the dentist didnt disagree with, he just went on to say they could give me braces yet my teeth are currently staight? [/INST] IIN regard to your query, I would have been good if you have mentioned your age and the teeth that are going to be extracted. Any ways if it is mandatory to extract the teeth for orthodontic correction it is called as therapeutic extraction which is no way related to current alignment of the teeth. I assume your concern is regarding the spaces present between your teeth, so only your dentist had advised to undergo for extraction for better aesthetics/or prognosis after thorough examination of your dental profile. Hope this is helpful. </s>