Fig. 3From: Natural graft tissues and synthetic biomaterials for periodontal and alveolar bone reconstructive applications: a reviewExamples of different applications of DBBM Xenograft (Bio-Oss®). a Subantral maxillary augmentation (direct sinus lift). b Augmenting thin bone around dental implants. c As a top layer covering FDBA particles to provide long-term support (sandwich GBR technique). Notice the use of Ti-reinforced d-PTFE membrane to provide space for the healing graftBack to article page