Histomorphologic findings on human bone samples six months after bone augmentation of the maxillary sinus with Algipore (R)

Sinus grafting, a popular and standard treatment for maxillary atrophy, use s a variety of grafting materials. In this study; specimens obtained 6 mont hs after sinus grafting with Algipore were evaluated under light microscopy and showed osseoformation, xenograft degradation, and bone ingrowth into p articles. Osteoblastic cells were embedded in the intracorpuscular bone mat rix, which indicated that xenograft particles are an osseoconductive scaffo ld and stimulate matrix deposition. Acute inflammatory responses after inse rtion of Algipore did nor. occur. Particles were degraded during physiologi c bone remodeling, and newly formed bone gradually replaced resorbed biomat erial.