CLINICAL CASE 1 – Baseline: recession defects on teeth #19 to #22 in the lower left quadrant. Exposed root surfaces of these teeth were thoroughly scaled and root planed before surgery. 2 – A full thickness muco-gingival tunnel was prepared through a minimally-invasive vestibular access incision apical to the teeth with gingival recessions. 3 – Geistlich Fibro-Gide® was cut into small pieces in a dry state using a scalpel. 4 – Insertion of Geistlich Fibro-Gide® into the subperiosteal tunnel. 5 – Geistlich Fibro-Gide® in situ: the gingival margin had been coronally advanced and stabilized after pieces of Geistlich Fibro-Gide® were placed. 6 – 1 week post-surgery: anchoring sutures were left in place for 1-2 weeks. 7 – 2 weeks post-surgery: anchoring sutures in place. 8 – 2 weeks post-surgery: removal of anchoring sutures. 9 – 7 months post-surgery: complete recession coverage.