Comparison of a PEG Membrane and a Collagen Membrane for the Treatment of Bone Dehiscence Defects at Bone Level Implants

The aim of the study is to test in a randomized comparative study the performance of Straumann® MembraGel (PEG Membrane) to act as a barrier for guided bone regeneration compared to that of a standard collagen membrane (BioGide®) in the bone regeneration around Straumann® SLActive bone level titanium implants. Furthermore the clinical evaluation and comparison of complementary parameters describing the bony and soft tissue environments at the surgical sites during the study period to evaluate effectiveness and performance of the membranes.