I had terrible teeth to start. We had gone to about 3 or 4 orthos already trying to find one that seemed confident that he could fix my teeth, but no one really did. I kind of came to the conclusion that I would just have to get 4 teeth pulled and that was the only way. I was so terrified. But then we went to Dr. Feller and he made me feel like he would get the job done no problem. He seriously did help my mouth, and my teeth are perfectly straight now! I love them! I also love wearing my retainer now becuase everyone had the metal ones that you can see, but since I have invisiline no one can even tell! Thank you Dr. Feller!