Table 2.

Comparisons of the number of blood vessels among different groups in 15 and 45 days

Group	Days	Mean	SE*	Duncan**	P***
Control	15 days	4.00	0.40	A	0.001
Corticotomy		8.25	0.25	B
Corticotomy with i-PRF		14.5	0.40	C
Control	45 days	2.00	0.40	A	0.001
Corticotomy		5.00	0.40	B
Corticotomy with i-PRF		10.50	0.28	C

*Standard error **Different letters vertically mean a significant difference ***A significant difference existed at P≤0.05