Bionator II (to Close)
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A removable appliance for the treatment of a Class II malocclusion with an open bite where the eruption of the anterior teeth is desired in addition to orthopedic change in growing patients. The mandible is held in the desired advanced position.
A posterior bite surface is utilized to prevent the eruption of the posterior teeth while the acrylic in the anterior region is relieved to allow for free eruption of the anterior teeth.
The lab requires maxillary and mandibular models and a construction bite reflecting an edge to edge relationship with a 3 mm posterior opening.