The implantological rehabilitation of the esthetic zone is one of the most demanding and complex treatments due to the necessity to obtain an optimum esthetic result. At the level of the soft tissues, it involves to obtain the complete formation of the papilla and to create a harmonic contour of the gingival margin. And this result should be predictable and stable, and it depends on the interaction of multiple variables that include biological factors, relating to the implant and prosthodontics. This review summarized the investigative situation and research progression of factors that influence the position of the periimplant soft tissues.
