Abstract
Several bone augmentation techniques have been developed to enlarge implant recipient sites in the cases that the bone mass was insufficient for implant placement. They enable ideal implant placement and bring good esthetic outcomes. In the case of upper molar site, sinus floor augmentation used to achieve vertical bone height. However, this technique often brings high crown/root ratio, inacceptable esthetics and insufficient hygiene. Cortical bone block graft using autologous bone enable to acquire vertical bone volume toward the alveolar crest, and was reported to be able to increase bone in the severely resorbed posterior maxillary region. In this case, the cortical bone block graft with sponge bone from the mandibular posterior regions as a donor site and sinus floor elevation using osteotome technique were applied for atrophic posterior maxillary region for implant treatment. In addition, we achieved acceptable outcome by using the latest simulation soft for detailed planning and computer-guided surgery to reduce surgical stress.
