Sandwich osteotomy for vertical and transversal augmentation of the posterior mandible

Bormann, K.-H.; Suarez-Cunqueiro, M.M.; von See, C.; Kokemüller, H.; Schumann, P.; Gellrich, N.-C.

doi:10.1016/j.ijom.2010.03.002

« Previous Next »International Journal of Oral & Maxillofacial Surgery
Volume 39, Issue 6 , Pages 554-560, June 2010

Sandwich osteotomy for vertical and transversal augmentation of the posterior mandible

K.-H. Bormann
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany
- Address: Kai-Hendrik Bormann, Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany. Tel: +49 5115324751; Fax: +49 5115324740.
M.M. Suarez-Cunqueiro
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany
- Department of Stomatology, University Santiago de Compostela, Spain
C. von See
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany
H. Kokemüller
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany
P. Schumann
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany
N.-C. Gellrich
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Germany

Accepted 16 March 2010. published online 04 May 2010.

Abstract

The aim of this study is to describe the treatment outcome after alveolar ridge augmentation in the atrophic posterior mandible by segmental sandwich osteotomy combined with an interpositional autograft prior to placement of endosseous implants. Thirteen consecutive patients (five males, mean age 48 years, and eight females, mean age 61 years) were included in this study. The postoperative course was uneventful in six patients. Sensory disturbances in the mental nerve were found in five patients, all of them with hypoaesthesia. None of these patients complained of permanent sensory disturbances. Vertical gain ranged from 2.0 to 7.8mm (mean value 4.61mm). Horizontal gain ranged from 2.0 to 6.3 (mean value 3.42mm). A total of 41 implants were placed in 22 surgical sites, 12 weeks after bone reconstruction. In conclusion, segmental mandibular sandwich osteotomy is recommended to meet the dimensional requirements of preimplant bone augmentation in atrophic posterior mandible.