Jan Rustemeyer1, Alexander Busch, Andreas Bremerich. 1. Department of Oral- and Maxillofacial Surgery, Clinic Centre Bremen-Mitte, School of Medicine of the University of Göttingen, St.-Jürgenstraße 1, 28177 Bremen, Germany.
Abstract
PURPOSE: We evaluated case-sensitive limitations of internal distraction devices (IDDs) to reveal further options for satisfactory outcomes. PATIENTS AND METHODS: Two male cleft patients aged 22 years (P1) and 20 years (P2) with severe maxillary hypoplasia were treated over 18 months. Cephalometric analyses and analyses of A-point movements by superimposing lateral cephalograms were done before and after activation of IDDs and after bimaxillary surgery (BIMAX). RESULTS: After activating IDDs, the vectors deviated and clockwise rotation of the maxilla and vectors occurred. After 8 months, BIMAX was needed to carry out further maxillary advancement. CONCLUSIONS: IDDs could pave the way to achieve maximal advancement with BIMAX in a second step and justify the overall treatment when comparing the initial situation with outcome.
PURPOSE: We evaluated case-sensitive limitations of internal distraction devices (IDDs) to reveal further options for satisfactory outcomes. PATIENTS AND METHODS: Two male cleftpatients aged 22 years (P1) and 20 years (P2) with severe maxillary hypoplasia were treated over 18 months. Cephalometric analyses and analyses of A-point movements by superimposing lateral cephalograms were done before and after activation of IDDs and after bimaxillary surgery (BIMAX). RESULTS: After activating IDDs, the vectors deviated and clockwise rotation of the maxilla and vectors occurred. After 8 months, BIMAX was needed to carry out further maxillary advancement. CONCLUSIONS: IDDs could pave the way to achieve maximal advancement with BIMAX in a second step and justify the overall treatment when comparing the initial situation with outcome.
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