The influence of implant depth, abutment height and mucosal phenotype on peri-implant bone levels: a 2-year clinical trial.

To evaluate the bone changes around equicrestal and subcrestal implants, analyzing the effect of abutment height [short abutments (SA<2mm) and long abutments (LA>2mm)] and the three components of the peri-implant soft-tissue phenotype.