FIG. 3.

Histological sections from the middle of the noncritical-size defect. (a–d) For all scaffolds and the untreated control, a histological section from 4 weeks postoperatively is shown. (a) Empty control defect; (b) titanium scaffold; (c) TCP scaffold with 10 μg BMP-2; (d) TCP scaffold. Scale bars indicate 1 mm. Original magnifications were 100 fold. Bone appears as grayish purple to purple, titanium as dark black, and TCP as grayish black. BMP, bone morphogenetic protein. Color images available online at www.liebertpub.com/tea