Fig. 4From: Long-term results of regenerative treatment of intrabony defects: a cohort study with 5-year follow-upTooth survival analysis. Kaplan–Meier survival estimates grouped by porcine-derived xenograft use in (a) patient- and (b) tooth-based analyses show survival rates of 91.48% and 95.20% over the follow-up period, respectivelyBack to article page