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. 2017 May 30;8:372. doi: 10.3389/fphys.2017.00372

Figure 3.

Figure 3

Migration of DiI-labeled cells from the apical part of the pulp toward the injury site. Bright-field pictures (D,G,J), dark-field pictures (B,E,H,K), merged pictures (C,F,I,L). Red arrows and arrowheads indicate the areas of DiI (red color) injection. Light blue arrowheads indicate the final location of migrating DiI-positive cells. Black and white arrows indicate injured teeth. (A) Schematic illustration showing dental pulp injury after cavity preparation. (B,C) Dental pulps immediately after injury and DiI injection (T0). (D–F) Dental pulps 4 days after cavity preparation and DiI injection (T4). (G–I) Intact dental pulps immediately after DiI injection (T0). (J–L) Intact dental pulps 4 days after DiI injection. Abbreviations: d, dentin; p, pulp; T0, time zero days; T4, time 4 days. Scale bars: 200 μm (B–L).