The use of endosseous implants is directly related to the topography and quality of the patient’s residual bone. Severaltechniques have been tried to expand its application through implant design alterations and surgical techniques for boneaugmentation. This article reviews the sandwich osteotomy combined with an interpositional autograft for vertical andtransversal augmentation in the atrophic mandible prior to endosseous implant placement. In conclusion, segmentalmandibular sandwich osteotomy can be recommended to fulfill the dimensional requirements of preimplant boneaugmentation in atrophic posterior mandible.