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A palatal expander Upper and lower jaw functional expanders. A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw [1] so that the bottom and upper teeth will fit together better. [2] [3] This is a common orthodontic procedure. The use of an expander is most common in children and adolescents 8–18 ...
Tissue supported expanders allow the forces to be applied directly to the tissues of palatal mucosa instead of teeth. The most common type of tissue-borne expander is known as the Haas Appliance . This appliance was popularized by Andrew Haas in 1961.
Components such as Palatal Finger Springs, Buccal Canine Retractor, Z-Spring, T-Spring, Coffin Spring, Active Labial Bows (Mill's Bow or Roberts retractor), Screws and Elastics are all considered to be active components of the removable functional appliances. If a spring is moving one tooth it is made of 0.5mm thick stainless steel wire.
SARPE is performed to address the transverse dimension changes in a patient. Sometimes this surgery is followed by Le Fort 1 in a second surgery to address the vertical and the anterior-posterior changes. Between the two surgeries, a patient's constricted maxillary arch is expanded with the rapid maxillary expander device placed in the maxilla.
Seamless integration of the Herbst appliance with a palatal expander to widen the upper arch and optimize orthodontic outcomes. Implementation of a lower archwire to exert pressure on all lower teeth, rather than just one, to improve grip and treatment efficacy.
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 ...
Palatal expansion can be best achieved using a fixed tissue-borne appliance. Removable appliances can push teeth outward but are less effective at maxillary sutural expansion. The effects of a removable expander may look the same as they push teeth outward, but they should not be confused with actually expanding the palate.
An expander can be used on an adult without surgery but would be used to expand the dental arch, and not the palate. Sometimes children and teenage patients, and occasionally adults, are required to wear a headgear appliance as part of the primary treatment phase to keep certain teeth from moving (for more detail on headgear and facemask ...
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