Fig. 4From: Impact on peri-implant connective tissue of laser treated versus traditional healing abutments: a human clinical trialsImmunostaining against Collagen V in the gingiva facing the (A) machined and (B) laser-treated surface​. Magnification 20x, scale bar 150 μm. The picture is representative of 3 different randomly chosen fields E: epithelium, C: connective tissue​Back to article page