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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Acta Biomater. 2013 Dec 7;10(3):1050–1063. doi: 10.1016/j.actbio.2013.11.015

Figure 2.

Figure 2

A. SEM image of the heat-pressed surface of thermoplastic polycaprolactone-based root filling material (C) showing phase separation of the methacrylate resin component (arrow) from the polycaprolactone. F: fillers. Bar = 5 μm. B. SEM image of the polycaprolactone-based root filling material after surface etching of the polycaprolactone root filling material with 0.1 N NaOH revealing exposed, partially-coalesced methacrylate resin droplets (arrow). Open arrowhead: unexposed fillers. Bar = 20 μm.