Fig. 1From: Clinical outcome of periodontal regenerative therapy using collagen membrane and deproteinized bovine bone mineral: a 2.5-year follow-up studyChange in CAL. a Mean CAL values at each evaluation period. Data shown as mean ± SD (n = 10). *P < 0.05, **P < 0.01, ***P < 0.001, compared to baseline, †† P < 0.01, compared to 6 months, by ANOVA with Tukey–Kramer multiple comparisons test. b Distribution of individual CAL change from baseline at 2.5 years. Dotted line indicates the mean value. CAL clinical attachment levelBack to article page