The surface characteristics of the dental implant abutment, which penetrates through the gingival mucosa and is exposed to the oral
cavity, could play an important role in not only bacterial adhesion and stagnation but also biocompatibility. In fact, the presence of
contaminants at the implant abutment connection has been suggested as a cause of associated tissue inflammation and activating factor
for osteoclastogenesis. Nowadays, esthetic demands in implant dentistry are greatly increasing, thus the use of customized abutments is
increasing noticeably. However, evidence for the quality of preparation on abutment surface topography is insufficient. The influence of
the conventional cleaning procedures of customized implant abutments has not yet been investigated or verified as reliable. The purpose
of the current review is to briefly describe and characterize the surface topography and cleanliness of customized abutment.