Table 3.

Evaluation of Intensity of histological parameters in experimental groups

Groups Parameters	Days	Group I	Group II	Group III	Group IV	Group V
Epithelialization	7	-	-	-	+	++*
	14	+	+	+	++	+++*
	21	++	+	+	++	++++*
collagen production score	7	+	-	-	+	++*
	14	++	+	+	++	+++*
	21	++	+	+	++	++++*
Vascularization	7	+	-	-	-	+++*
	14	++	+	+	+	++++*
	21	++	+	+	+	++++*
Congestion	7	+++	+++	+++	+++	+*
	14	+	+++	++	+	-
	21	-	++	++	+	-
Acute Hemorrhage	7	+++	++++	+++	++ +	+*
	14	++	+++	+++	+ +	-
	21	-	++	++	+	-

Classification of histological parameters according to the intensity of occurrence: - absence; + discrete; ++ moderate; +++ intense; ++++ very intense. Histopatological damages were assessed as explained under material and methods on days, 7, 14 and 21 of lesion. *P<0.05 vs. groups III and IV.