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

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	33.67^a	27.0^b	22.8^c	8.3^d
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 ().