Studying Effects of Calcium Oxide Nanoparticles on Dentinogenesis in Male Wistar Rats

Figure 3

Representative histological images under the light microscope (H&E, ×10) showing (a) dental pulp at the control group with very thin layers of the predentin and a high number of blood vessels, (b) 25 mg/kg CaO-NP treatment with a slightly thicker predentin and a low number of blood vessels, (c) 50 mg/kg CaO-NP treatment with a slightly thicker predentin and a low number of blood vessels, and (d) 100 mg/kg CaO-NP treatment with a thick and irregular predentin (PD) and very low number of blood vessels (BV).

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(b)

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(d)