This is worn over your teeth every night, like a gum shield. It is clear, thin and you will get used to it within a few days.
This is a thin wire placed behind the teeth and holds the straightened teeth in position. You will get used to it within a few days.
It is a good idea to check your retainers at future dental check-up visits to ensure they are intact.
If your retainer is damaged, you should contact as soon as possible to fix it.