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Modification of the bilateral sagittal split osteotomy (BSSO) in a study using pig mandibles |
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| Authors: | Schoen P Frotscher M Eggeler G Kessler P Wolff K-D Boeckmann R |
| Affiliation: | 1 Department of Oral and Maxillofacial Plastic Surgery, Knappschaftskrankenhaus, Ruhr University Bochum, Germany;2 Department of Materials Science, Institute for Materials, Ruhr-University Bochum, Germany;3 Department of Oral and Maxillofacial Plastic Surgery, University Hospital rechts der Isar, Munich Technical University, Germany;4 Department of Cranio-Maxillofacial Surgery, Maastricht University Medical Hospital, Maastricht University, The Netherlands |
| Abstract: | In a bilateral sagittal split osteotomy (BSSO) mechanical irritation of the inferior alveolar nerve (IAN) (e.g. by chiselling) should be avoided to prevent neural damage. A modification of the Obwegeser-Dal Pont operation technique was studied by splitting 100 pig mandibles ex vivo. An additional osteotomy at the caudal border of the mandible was used to facilitate the sagittal split by means of a locus of minor resistance. The chisel was inserted distal to the second molar and far away from the IAN. The mandible was split by torque. The modified technique reduced the required torque to split the mandible about 30% compared with the original technique (paired t-test, t(69) = −12.89; p < 0.05). 75% of all mandibles split by the modified technique were classified as bad splits compared with 100% using the original technique using the same protocol without the additional osteotomy. |
| Keywords: | BSSO pig mandible |
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