Megan, came to our office about a year before we placed her braces. She was missing a top right premolar and she felt her top jaw was too narrow. About a year later her dad called the dental clinic because she had a tooth that needed a root canal and crown and a poor long-term prognosis. She wanted the tooth extracted and asked if we could move the 2nd molar forward (her lower back right tooth). She had the 1st molar extracted and we moved the 2nd molar into the 3rd molars position and the 3rd molar will likely erupt into the 2nd molar position. We saved her from needing an implant or bridge. Look at how we closed upper space where she only has 1 premolar and on the other side were able to rotate the premolars straight. We made her a maxillary fixed (permanent) retainer.