How long do I need to wear the retainer for?

You’ll need to wear your retainers for the 6 week passive healing phase of your Candid treatment, and then for 8 hours per night indefinitely.

For the first two weeks after active treatment, wear your retainers for 22 hours a day.
For the third and fourth weeks, wear your retainers for 18 hours per day.
For the fifth and sixth weeks, wear them for 12–14 hours per day.

Make sure you keep wearing them for 8 hours at night indefinitely, because if you don’t, your teeth will start to shift back toward their original position.