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Maxillary sinus augmentation using computer‐aided design/computer‐aided manufacturing (CAD/CAM) technology

Maxillary sinus augmentation is a common method for increasing bone height for insertion of dental implants. In most cases, the graft is manually cut into a roughly appropriate shape by visual estimation during the operation; accordingly, the shape of the graft depends considerably on the experience of the surgeon. We have developed a computer‐aided design/computer‐aided manufacturing (CAD/CAM) technique to generate custom‐made block grafts for sinus augmentation, and a customized cutting guide to precisely position the lateral wall and facilitate membrane elevation, using cone‐beam computed tomography (CBCT).