Table 2.
Mean values of the number of blood vessels in the dental pulp of Wistar rats after 60 days of CaO-NP administration at different dosages (25, 50, and 100 mg/kg) and the nontreated control group.
| Groups | Control | 25 mg/kg | 50 mg/kg | 100 mg/kg |
|---|---|---|---|---|
| Number of blood vessels' data | 12 | 12 | 12 | 12 |
| Mean | 33.67a | 27.0b | 22.8c | 8.3d |
| Std. deviation | 2.49 | 4.63 | 1.85 | 2.06 |
| Std. error | 0.7213 | 1.337 | 0.5342 | 0.5946 |
| Minimum | 31.0 | 17.0 | 20.0 | 5.0 |
| Maximum | 38.0 | 31.0 | 25.0 | 11.0 |
a–dDifferent letters indicate statistical significant differences (P < 0.05).