Why is there wire on both sides of the Harley retainer?

The most common is the transparent retainer, because of its transparent colorless, high aesthetic degree, so most doctors like to choose this transparent retainer. The clear retainer will wrap around the teeth in 360

degrees like invisible braces, keeping the teeth in position after the treatment is finished.

The Harley retainer

The Harley retainer is an adjustable, removable retainer.

The advantage of this retainer is that it allows for active force application; in other words, a clear retainer maintains the teeth in the position they will be in at the end of orthodontic treatment, while a Harley retainer provides a little extra strength.

For example, if some patients have a gap that spreads out particularly easily, the doctor may give you the option of a Harley retainer; if you find that your teeth are out of the gap during a follow-up appointment, the doctor may simply add force to the Harley retainer to continue to close that gap again.

The third is the lingual retainer wire

The lingual retainer wire is, as the name suggests, a wire that is bonded to the back of the teeth and has a certain invisibility effect. The front teeth are the most likely to recur, so the doctor will pay special attention to the front teeth

and add a lingual wire to the back of the front teeth to keep the orthodontic effect and prevent the teeth from resetting.