Abstract: [Abstract] Implant abutments not only guarantee the wound healing with soft tissue adhesion ,but also take part in the esthetic implantology.So it is important to explore the porperties of implant abutment and its effects.We make a comprehensive from several aspects,including abutment materials,surface roughness,surface wettability,surface topography and surface cleanliness.In brief,it is generally considered that titanium and zirconia are suitible materials,hydrophilic surface and clean surface are also benefit to soft tissue adhension,but the current literatures provide insufficient evidence about the other factors.

Key words: [key words] implant abutment , surface properties , soft tissue adhesion