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. 2023 Apr 22;23:84–93. doi: 10.1016/j.reth.2023.04.002

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Fig. 7 — Histology of the regenerated tissue on the root surface. Representative photomicrographs of Azan staining from the control (a, b), CO₃Ap (c, d), and FGF-2+CO₃Ap (e, f) groups at 6 weeks and the control (g, h), CO₃Ap (i, j), and FGF-2+CO₃Ap (k, l) groups at 24 weeks. D: dentin, NB: new bone, yellow arrowheads: defect bottom, red arrowhead: new cementum. Scale bar represents 100 μm.