Bone Regeneration Using N-Methyl-2-pyrrolidone as an Enhancer for Recombinant Human Bone Morphogenetic Protein-2 in a Rabbit Sinus Augmentation Model

Figure 3

Histologic comparisons showing the least and greatest bone regeneration in the BMP/NMP group (Masson’s trichrome stain). ((a), (e)) Overall views of the augmented sinus (original magnification, ×20). ((b), (f)) High-magnification views of the window region (original magnification, ×100). ((c), (g)) High-magnification views of the center region (original magnification, ×100). ((d), (h)) High-magnification view of the membrane region (original magnification, ×100). Arrowheads, new bone; asterisks, residual bone material.