Basler T, et al. - Authors evaluated 2- and 3-dimensional changes of the peri-implant tissues as well as clinical, biological, and radiological outcomes of implants having been treated with resorbable or nonresorbable membranes at 3 years. Experts performed statistics by means of parametric and nonparametric tests. As per data, minor, but ongoing contour changes of the peri-implant tissues were resulted by both the treatment modalities. Up to 3 years, stable interproximal bone levels and healthy tissues could be obtained with membranes.