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. 2016 Sep 16;6(2):656–665. doi: 10.5966/sctm.2016-0028

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© 2016 The Authors Stem Cells Translational Medicine published by Wiley Periodicals, Inc. on behalf of AlphaMed Press

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Adipose stromal cell (ASC) graft improved periodontal ligament (PDL) fiber reorganization. (A–D): Histological sections of healthy (A) and diseased PDL fibers before treatment (0 week) (B) and 12‐week vehicle treated (C) or ASC treated (D). Black arrows indicate horizontal fibers and white arrows oblique fibers. (E–F): Histomorphometry analysis of PDL. Twelve weeks after treatment, the entropy calculated from the Hough transform was significantly lower in ASC‐grafted sites than in controls, for both horizontal (E) and oblique (F) fibers, and close to that of healthy PDL. Scale bar: 50 µm. ∗∗, p < .01; ∗∗∗, p < .001, indicating a significant difference between treatment and control sides. Abbreviations: AB, alveolar bone; ASC, adipose stromal cell; b, indicates a significant difference in the treatment side between each time point and 0 week (baseline); C, cementum; D, dentin; n, indicates a significant difference in the treatment side at each time point and not colonized; NC, not colonized; PDL, periodontal ligament; wk, week.