A palatal expander is an appliance placed in the roof of the mouth to widen the upper dental arch, which allows the arch to be painlessly separated and spread. A treatment used for younger patients. Many times a palatal expander can be used to create a proper alignment of the arches so permanent teeth have room to erupt in a natural position. Often, the use of an arch expander early may eliminate the need for braces later.
A lower lingual arch is a space maintainer for the lower teeth. It maintains the molars where they are, 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.
This appliance is indicated when one molar (an erupting six-year molar) is caught under the edge of a primary second molar. The appliance features a wire spring which is attached to the erupting molar and to the second molar. The spring provides the force to move the erupting molar into proper position.
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.
A headgear is an orthodontic appliance attached to dental braces that aid in correcting severe bite problems. The headgear is attached to the braces and is anchored from the back of the head, neck or forehead. Its purpose is to stop the upper jaw from growing and to distalize the upper molars, hence preventing or correcting overbite. The type that is anchored on the forehead is used to medialize the upper molars, hence correcting or preventing under bite. There are two different headgears, one to correct overbite (cervical headgear) and one to treat under bites (reverse headgear). Headgear should be worn 10 - 14 hours daily, typically at night, or as directed by your dentist.