Fig. 4

Attached PDL fibroblasts (a, b, c, d; after 72 h of incubation) and TIGK (e, f, g, h; after 24 h of incubation) to polylactide (a, c, e, g) and collagen (b, d, f, h) membranes in the presence bacterial lysates (prepared from two species being associated with periodontal health (a, b, e, f) or six species associated with periodontal disease (c, d, g, h) in three concentrations and in part after dipping initially membranes into 0.015% digluconate solution (CHX) *p < 0.05 vs. control. Presented are median and 10, 25, 75 and 90 percentiles. **p < 0.01 vs. control