AÇBİD 16th INTERNATIONAL CONGRESS-AsianAOMS 2023, Antalya, Turkey, 10 - 14 May 2023, no.13, pp.139
Objective: Atrophic posterior maxilla may pose a significant challenge for dental implant
treatment. Various treatments are available for augmentation of the vertically defective.
Segmental sandwich osteotomy is an alternative option for dental implant treatment that
provided reconstruction of the bone defect (1,2). In recent years, iliac bone grafting has
become one of the most widely used autogenous bone grafting techniques (3). In this case,
we present segmental sandwich osteotomy with interpositional iliac graft for the treatment of
vertical bone defect.
Case: A 67-year-old male patient has been admitted to our clinic for dental implant treatment.
As a result of radiographic and clinical examination, it was seen that the vertical bone
volume was insufficient in the left maxillary and right mandibular areas where implants were
planned (Figure 1). Segmental sandwich osteotomy with interpositional iliac graft planned for
the treatment of vertical bone defect. Iliac bone harvesting were performed under general
anesthesia (Figure 2, 3). Segmental osteotomy was performed in the left maxillary posterior
region. The iliac graft was placed in the interpositional region and the plate was fixed using
screws (Figure 4). The iliac graft was fixed to the right mandibular region with a screw and
plate (Figure 5). Implants were placed at 6 months post-operative (Figure 6,7,8).
Conclusion: Studies have shown that segmental sandwich osteotomy is a relatively simple
technique that provides surgical success and a high level of predictability(4). In the treatment
of moderate to severe vertical alveolar bone loss, segmental sandwich osteomies with iliac
grafts can show successful results.
Keywords: dental implants, iliac graft