Modification of the bilateral sagittal split osteotomy (BSSO) in a study using pig mandibles

P. Schoen, M. Frotscher, G. Eggeler, P. Kessler, K. D. Wolff, R. Boeckmann

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

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.

Original languageEnglish
Pages (from-to)516-520
Number of pages5
JournalInternational Journal of Oral and Maxillofacial Surgery
Volume40
Issue number5
DOIs
StatePublished - May 2011
Externally publishedYes

Keywords

  • BSSO
  • mandible
  • pig

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