EXTRAORAL TRACTION APPLIANCES Meaning and
Definition
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Extraoral traction appliances are orthodontic devices used to apply force to the teeth and jaw from outside the mouth. They are typically used in cases where there is a need to move the position of the teeth or correct jaw alignment. These appliances are specifically designed to exert pressure on the maxilla (upper jaw) or mandible (lower jaw), either individually or simultaneously.
Extraoral traction appliances consist of various components, such as headgear, facebows, and elastics. Headgear is a metal device worn outside the mouth, typically attached to braces or a retainer, and anchored to the back teeth. It applies continuous force to the upper teeth or jaw, aiding in the modification of tooth and jaw positioning. Facebows, on the other hand, consist of a metal bar that extends across the patient's face, connecting the braces or retainer to the headgear. This helps to stabilize the direction of force.
Elastics are rubber bands that can be attached to hooks on the braces or other components of the appliance. These elastics are commonly used in combination with headgear or facebows to achieve the desired tooth or jaw movement.
Extraoral traction appliances are commonly used in orthodontic treatments to correct severe malocclusions (misalignments of the teeth or jaws) and to facilitate orthopedic jaw growth modification. The duration of their use can vary depending on the individual's condition and treatment plan. Regular adjustments and follow-ups with an orthodontist are necessary to monitor progress and ensure the appliances are working effectively.
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