Zygoma Augmentation With 3D Printed Bioactive Glass-Ceramic Implant.

Zygoma, which is located at the middle third of the face, has a significant impact on the facial impression with its volume and prominence. CaO-SiO 2 -P 2 O 5 -B 2 O 3 glass-ceramics (BGS-7) has been reported as a new alternative of nonresorbable bone grafting material, which has bioactivity of inducing human osteoblast between bone and implant, resulting integration to the bone. Furthermore, its chemical characteristics are similar to bone, resulting in radiopacity with no metallic artifact on the radiographic images. With the development of Computer aided design-Computer aided manufacturing technology, BGS-7 can be manufactured into a patient-specific design.During follow-up periods, 3D printed BGS-7 implant did not displace from the initial recipient site. By cone-beam computed tomography evaluation, a gap between bone and BGS-7 was filled with the radiopacity, which implied bony fusion. Consequently, this clinical case shows that the BGS-7 implant could be an effective and safe graft material for zygoma bone defects.