If you’re looking to fix gaps or crowding, you actually need . Aligners apply active pressure to shift teeth, while retainers are the "insurance policy" that keeps them from shifting back.

If your teeth have only shifted a tiny bit since your last treatment, a new custom retainer might help nudge them back—but always check with a pro first to avoid gum or bone damage.

✨ You can now order custom, lab-direct replacement retainers online for a fraction of the office price.

Buying retainers to straighten teeth is a common goal, but it’s important to distinguish between , which hold teeth in place, and clear aligners , which actually move them. While some retailers market "straightening retainers" for minor shifting, true alignment typically requires a series of progressive aligner trays.

Aligners vs. Retainers: Are They the Same?

Below are social media post drafts tailored for different platforms to help you navigate these options safely.