Research Article

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

Figure 1

Histologic measurements of the augmented sinus. The total augmentation was defined as the area surrounded by the access window (arrowhead), lateral and medial sinus walls, and the Schneiderian membrane (SM). Three rectangular ROIs (1.1 mm × 1.9 mm) were established along the long axis of the augmentation: close to the access window (W), in the center (C), and near the Schneiderian membrane (M).