Figure 9.

Quantification of histological parameters. Histology of the lesions treated with Alg/SS and Alg/SS/PL biomembranes; evaluation and statistical analyses of specific parameters suggested by Abramov et al. [24]: inflammation, defined in an early phase (a) and a late one (b); granulation tissue, intended as amount (c) and maturation of granulation tissue (d); collagen deposition (e); re-epithelialization (f) and neo-vascularization (g). All evaluations were reported in the plot as difference between the PL treated and the control lesions, *** p < 0.001, ** p < 0.01, * p < 0.05.