Effect of Hypoxia-Inducible Factor 1α on Early Healing in Extraction Sockets

Figure 4

Histological views of the control group (Masson’s trichrome stain). (a) Overall view of the alveolus. (b, c, d) High-magnification images of the boxed areas in the alveolus. Newly formed bone; black arrow, residual bone substitute material.

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