A lower lingual arch is a space maintainer for the lower teeth. It maintains the molars where they are and it does not move them. It keeps the molars from migrating forward and prevents them from blocking off space of teeth that develop later. Used when early loss of baby teeth or when lower teeth are slightly crowded.
A gadget that the orthodontist gives you to wear after your braces are removed. The retainer attaches to your upper and/or lower teeth and holds them in the correct position. You wear the retainer 24 hours a day at first then at night to make sure that none of your teeth move while your jaw hardens and your teeth get strongly attached to your jaw.
A space maintainer is a removable or fixed appliance designed to maintain an existing space. They are usually fitted to children when they have lost baby teeth early. The gap left from losing this tooth needs to be held open for the permanent tooth to erupt in its correct position.
Spring Hawley Retainer
After completing orthodontic therapy, it is not uncommon to still need a little fine tuning of tooth alignment. This is particularly true in patients who have undergone extensive orthodontic therapy and are simply "burned out."
This retainer is useful in correcting minor rotations and crowding. When worn, the spring action of the wires provide a light force to align the teeth. The appliance is constructed to the "ideal" setting and the patient's teeth adapt to their new position.