Fig. 5From: Early soft tissue response to zirconium oxide and titanium healing abutments in vivo: a study in dogsImmunohistochemical observation identifying TNF-α in soft tissues around the Zr and Ti healing abutments with or without ligation (the bar = 100 µm) (ZrL: Zirconium healing abutments with ligation; ZrN: Zirconium healing abutments with non-ligation; TiL: Titanium healing abutments with ligation; TiN: Titanium healing abutments with non-ligation)Back to article page