Abstract:

With the growing maturity of implant technology，dental implants have been the primary consideration for the restoration of missing teeth. However，food impaction and difficult cleaning caused by poor soft tissue counter and insufficient keratinized tissue can lead to plaque accumulation，which is one of the key factors leading to peri-implant diseases. The presence of keratinized tissue is beneficial to the maintenance of oral hygiene. Free gingival graft （FGG） can increase the width of keratinized tissue and improve the soft tissue profile around implants with stable clinical results，but it is hard to perform the process after restoration. This case fully demonstrates this surgery to compensate for the implant and restoration effect of a patient，which provides an option for clinicians to make treatment decisions for such cases.

Key words: keratinized tissue, free gingival graft, dental implants, food impaction, peri-implant diseases

摘要：

随着种植技术的日益成熟，种植修复已经成为缺失牙修复首要考虑的方案。种植修复后常因软组织轮廓欠佳、角化组织不足而导致患者出现食物嵌塞、清洁难度大等问题，长期的菌斑堆积成为最终导致植体周病的关键因素之一。反之，充足的角化组织有利于患者口腔卫生的维护，消除清洁时的不适感。游离龈移植（free gingival graft，FGG）可增加角化组织宽度和改善植体周软组织轮廓且临床效果稳定，但在种植修复后进行此手术面临诸多难题。文章展示了1例种植修复治疗后实施游离龈移植术来改善种植修复效果的诊疗过程，为临床医生处置此类病例提供指导。

关键词: 角化组织, 游离龈移植, 牙种植, 食物嵌塞, 植体周病