A permanent retainer has a solid or braided wire that is twisted to fit the shape of your new straight teeth. The wire should be closed inside your front teeth so that they do not move. Most often used on lower teeth, also called fixed, lingual wire, or bonded retainers.
Permanent teeth are bound to the tongue. They are usually used only on less teeth and provide better long-term results than those removed. Their biggest advantage is that they can never be lost, and the patient does not have to remember to enter it.
Permanent retainers are designed to prevent your teeth from moving after removing bad teeth. A permanent retainer consists of a thin, strong wire attached to the back of each tooth. They are usually used on the bottom teeth, which move easily, but can also be used on the upper teeth.