How long do I have to wear my retainers? If you’ve ever worn braces before, this is probably the first question you asked your dentist. According to Dr Emma. “After months and months of sporting dental hardware, it's not surprising that people are keen to have their mouths free of metal. The answer however; is pretty disappointing - you need to wear your retainers for as long as you want your teeth to stay straight. Why? Well, essentially, retainers keep teeth from moving back into the position from which they started. Without being held in place by retainers, your post-braces teeth will drift back to the most natural position they can find.” In this article Dr Emma discusses the main differences between a fixed and removable retainer and explains why wearing one for life is the only way to keep our teeth straight after orthodontic treatment.