关键词: 牙种植, 口腔软组织, 附着龈增宽术, 并发症

Abstract: Implant-supported dentures have become a crucial modality for restoring missing teeth. With the advancement of societal living standards，individuals′expectations for implantation extend beyond mere tooth replacement to encompassing higher aesthetic demands on soft tissues. Following tooth loss，both the soft and hard tissues in the edentulous area undergo a series of changes. Attached gingiva plays a pivotal role in safeguarding periodontal health. Insufficient attached gingiva can compromise the implant′s resistance against external stimuli and potentially result in implant failure under severe circumstances. Attached gingiva augmentation is frequently employed to address issues related to inadequate attached gingiva；however，this procedure may also give rise to certain complications that impact its success rate. This article aims to elucidate potential complications arising from attached gingiva augmentation during implant restoration and provide recommendations on their management and prevention，thereby offering valuable insights for clinical practice.

Key words: dental implantation, oral soft tissue, attached gingiva augmentation, complication