Histologic and Histomorphometric Comparison between Sintered Nanohydroxyapatite and Anorganic Bovine Xenograft in Maxillary Sinus Grafting: A Split-Mouth Randomized Controlled Clinical Trial

Figure 7

Under circularly polarized light, osteoconduction appeared clear with intimate contact between the new bone (VB) and both biomaterials (NHA and ABB). Moreover, the differences in the microstructure (mainly collagen fiber orientation) can be observed. Around some NHA particles, the new bone presented osteons with vessels (HC).