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Int J Oral Maxillofac Surg ; 33(1): 19-24, 2004 Jan.
Article in English | MEDLINE | ID: mdl-14690655

ABSTRACT

The diagnostic records of all patients who had undergone Delaire/Joos osteotomy with mandibular setback at the Muenster University Hospital (period 1995-2000, n=22) were used for space management evaluation in the context of combined surgical-orthodontic treatment.Twenty-eight dental spaces were present prior to the start of treatment and 14 were created by extracting teeth as a pretreatment measure. In two patients, unilateral setback was performed according to Obwegeser/Dal Pont. Thus, 42 tooth-bounded spaces were present at the time of Delaire/Joos osteotomy with mandibular setback, most of them in the first molar region, followed by the second premolar region. A significant space reduction was achieved by the surgical intervention, but not by the subsequent orthodontic treatment. The best results with respect to complete space closure by orthognathic surgery/orthodontic treatment without the need for subsequent prosthetic rehabilitation were recorded in the second premolar region. In the absence of spaces and with a similar long-term prognosis for all potentially extractable teeth and adequate space for the necessary surgical repositioning, the second premolars should therefore be regarded as the 'extraction teeth of choice' for mandibular setback within the context of Delaire/Joos osteotomy.


Subject(s)
Malocclusion/surgery , Malocclusion/therapy , Mandible/surgery , Oral Surgical Procedures , Orthodontic Space Closure , Adolescent , Adult , Female , Humans , Longitudinal Studies , Male , Osteotomy/methods , Prognathism/surgery , Retrospective Studies , Tooth Extraction
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