Removable and Functional appliances such as a Bionator, Activator, Twin Block, and Fraenkel are used for the improvement of severe bite issues in young patients, usually as a first phase of a Comprehensive Orthodontic Treatment. These devices can either be made from separate upper and lower parts, which interlock placing the lower jaw in a different position or can be made of one piece.

 

Removable appliances such as a “plate” are used to improve the alignment of a couple of teeth or to expand an upper jaw.

 

Removable appliances are generally less precise and effective as compared to fixed appliances. The success of a treatment with removable appliances is dependent on the daily wearing and the growth patter/growth amount. Alternative devices and treatments are available and may include full fixed braces in combination with headgear, perhaps teeth extractions, or in severe cases, a jaw surgery when growth has finished.