Histological data of the granulation tissue obtained from different groups^a.

Groups	Re-epithelialization	Fibroblast	Collagenation	Neovascularisation	Inflammatory cells
Control	−	+	−	++	+++
Standard	+++	+++	+++	+++	−
ZnOTP1	++	++	++	++	++
ZnOTP2	+++	+++	+++	+++	−

^aHaematoxylin and eosin stained wound skin sections were scored as −: absence, +: slight, ++: moderate and +++: extensive.