Why Teeth RelapseRelapse is very common among braces wearers, especially during the first year after the braces are removed. The main reason why teeth relapse in this period is that they aren’t yet fully fixed in their new places. Braces move teeth by putting constant pressure on the tooth, causing the bone around it to remold, allowing the tooth to move. Once the braces come off, though, there is no longer force pushing your teeth into the desired position. Instead, there are forces that want to draw your teeth back to their old position. The periodontal ligaments around your teeth are a tough, flexible fiber, so they don’t remodel initially. Instead, they stretch, like a rubber band. Once your braces are removed, then, you basically have a rubber band trying to pull your teeth back to where they were before. The movement of your teeth back is made more likely by the fact that the reworked bone around your tooth may be less dense along the path from your tooth’s new position to its old position. Finally, your braces may not have been set up to change your bite. If not, you are still biting down with the old bite force, which is part of what made your teeth crooked in the first place.