1 Introduction
S. Chen, D. Buser
Over the last decade, the evolution of implant dentistry has continued, with significant advances in biomaterials and clinical techniques through ongoing research and development. To a large extent, this evolution has reflected the change in the demographics of individuals going to dental offices for treatment today. While in the past, most patients presented with edentulous spaces, today the majority seek replacement of teeth that require extraction prior to implant placement. In these cases, the clinician must make a very important decision, i.e. to recommend the best time to place an implant />