When I was a student, I had extraction orthodontic treatment for 3 years because of protrusion + malocclusion, and then had the appliances removed. But the extractions weren't done because of my oral structure; my chin was retruded, so they extracted teeth in the process of moving my mouth further inward to make my chin look a bit more projected. Maybe because of that, the spaces between my teeth formed so easily... My retainer came off and I couldn't go to the clinic right away, so my front teeth developed a gap. I lived for years with resin filling the space between my front teeth, but it gradually felt like my teeth were getting weird, so I started orthodontic re-treatment.
My teeth moved better than I expected, and once the braces were attached, I realized my teeth were too uneven to say they had already been corrected.... After 6 months, the space next to the upper canine wasn't closed, and they judged that it wouldn't close any further, so I just had the appliances removed...
My teeth became straight again, but as expected, my front teeth are slightly more spaced than before, and the dental midline doesn't match,, The bite between my upper and lower teeth is also a bit off... I don't want to do orthodontic re-treatment for a third time, so I'm just putting up with it.. ㅠㅠ