The “Å-RPE” anchoring system is used for bone-anchored, rapid palatal expansion (RPE) in combination with a commercially available RPE expansion screw (third party product) for correction of a narrow upper jaw and an anterior narrow front teeth in the upper jaw. Bone anchored RPE expansion screw devices are a good alternative to tooth-borne fixation of RPE expansion screw especially in patients with weak bone and peridontium. While performing a palatal expansion during the change from primary to permanent teeth in children and adolescents the “Å-RPE” system helps to avoid stress and damage on the teeth. But even in adult patients when only a skeletal effect is desired, the “Å-RPE” system can be used.
Benefits regarding the teeth
- Gentle treatment of all teeth, low impact on the gingival cleft avoids tilting of the teeth
- No root resorption and no deterioration of the cortical bone on the anchoring tooth due to bone anchored fixation
- No irritation of the mucous membrane at the periodontal gap
- Prosthetic bridges do not have to be split
Benefits regarding the expansion result
- Force acts directly on the palate, therefore no loss of force
- No tiltingsince the segments move parallel
- During the retention phase, the bone anchoring prevents relapse caused by movement of the teeth
