FIG. 6.

Histological sections 4 weeks after surgery. (a, d, g) Uncovered control group. New bone formation is seen from the cut edge. (b, e, h) PCL/PLGA group. The membrane was not absorbed, and new bone formation is observed beneath the membrane. (c, f, i) PCL/PLGA/β-TCP group. The membrane was not absorbed, and there was more new bone than in the PCL/PLGA group. There was no inflammatory reaction around the membrane. Magnification,×12.5 in (a, b, c) and ×40 in the others. Left and right rectangles in (a, b, c) indicate the observation zones of (d, e, f) and (g, h, i) respectively. Color images available online at www.liebertpub.com/tea