关键词: 表面改性, 种植体穿黏膜区, 钛基台, 软组织封闭, 抗菌

Abstract: The success of oral implantation is closely related to the integration of the implant and its surrounding soft tissues. With the wide application of implanting technology，postoperative complications have become increasingly apparent，among which peri-implantitis is the most common. The key strategy to prevent peri-implantitis is to modify the implant abutment in the transmucosal area in various forms. This article introduces the current surface modification strategies of titanium abutment in the transmucosal area of dental implants. By creating micro and nano surface structures，enhancing surface hydroicity，changing chemical composition of the surface，and constructing bioactive coatings，the ability of soft tissue integration and the antibacterial ability can be improved to prevent potential infection risks. This article also proposes directions for future research on multifunctional surfaces，aiming to construct a comprehensive multifunctional surface research framework to achieve soft tissue sealing in the transmucosal area of the implant and ensure the long-term stability of the implant.

Key words: surface modification, transmucosal area of the dental implant, titanium abutment, soft tissue sealing, antibacterial