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A removable appliance is usually used by patients who have high degree of compliance with their orthodontic treatment. Fixed appliances are able to produce very accurate movement in the teeth [1] [2] Both fixed and removable functional appliances can be used to correct a malocclusion in three planes: Anterior-Posterior, Vertical and Transverse.
The original bite-jumping appliance (Herbst appliance) was designed by Dr. Emil Herbst and reintroduced by Dr. Hans Pancherz using maxillary and mandibular first molars and first bicuspids. The bands were connected with heavy wire soldered to each band and carried a tube and piston assembly that allowed mandibular movement but permanently ...
People who exhibit a tongue thrust often present with open bites; the force of the tongue against the teeth is an important factor in contributing to "bad bite" (malocclusion). Many orthodontists have completed dental treatment with what appeared to be good results, only to discover that the case relapsed because of the patient's tongue thrust.
The appliance includes a jackscrew in the middle for patients to turn for expansion purposes. This appliance also has rigid wires extending from appliance to premolars and molars. It is important to note that the tooth-borne expanders can be divided into the Bonded vs. Banded Type of expanders. Hyrax appliance falls under the banded type appliance.
Upper and Lower Jaw Functional Expanders. There is a totally different orthodontics approach without extraction and pain, is called functional orthodontics, the functional orthodontic technology is different and called functional appliance, that is an appliance that produces all or part of its effect by altering the position of the mandible/maxilla.
It usually takes a week or two for one to adjust to eating and speaking after first receiving the rapid palatal expander. This process requires patients to turn the expansion screw themselves to widen the expander. For expansion that is not managed by the patient and on the lower jaw, a bionator appliance may be a more suitable alternative.
Multiple appliances and accessories are typically used along with the headgear, such as: power chains, coil springs, twin blocks, plates or retainers, facemasks, a headgear helmet (a headgear helmet is a cervical headgear with a cap or rigid helmet that covers the entire head), lip bumpers, palate expanders, elastics, bionaters, Herbst ...
Lower removable lingual arch. A lingual arch is an orthodontic device which connects two molars in the upper or lower dental arch. The lower lingual arch (LLA) has an archwire adapted to the lingual side of the lower teeth.