Fig. 3From: Randomized controlled trial on the effectiveness of absorbable collagen sponge after extraction of impacted mandibular third molar: split-mouth designA comparison of the probing depths for the sides that received a sponge and those that didn’t. The results are shown as the mean (SD). * indicates P < 0.05 between collagen sponge insertion versus control. Abbreviations; T0, Pre-operation; T2, 2 weeks post-operatively; T3, 14 weeks post-operativelyBack to article page