Have you noticed lately that your teeth seem to be moving out of their intended alignment? You might not be imagining things – teeth can and do shift over time, even if you’ve had orthodontic treatment in the past! While this movement is often slow and subtle, it can eventually affect your bite, the integrity of your teeth, your overall oral health, and of course, your self-esteem. Understanding what causes this movement and how orthodontic treatment can help is key to maintaining a healthy smile; here’s what you need to know.