The first three months are critical, and the teeth are most likely to shift during this stage. During this time, a week without your retainer may cause some minor shifting.

Will my teeth shift without a retainer for a week?

If you skip or lose your retainer for a week, it's possible to have some small amount of relapse. Like we said earlier, teeth can move back to their original positions without a retainer to provide guidance and pressure.

Will my teeth shift without retainer for a day?

Retainers are designed to keep your teeth in place, choosing to not wear it for a long period of time will cause some issues. It's fine to miss a day or two because your teeth won't move much during that time. If you go without it much longer than that, then your teeth will start to shift again.