El-Sayed Mohamed Ahmed Hafez, Saleh Wafaa, ElMeadawy Samah, Al-Shahat Mohamed A
Oral Medicine, Periodontology, Diagnosis and Oral Radiology Department, Faculty of Dentistry, Mansoura University, Mansoura, 33516, Egypt.
Oral Maxillofac Surg. 2025 May 20;29(1):104. doi: 10.1007/s10006-025-01401-y.
This study measures the impact of timing of free gingival graft (FGG) in improving aesthetics, function, and long-term stability of dental implants by measuring keratinized mucosa width (KMW), soft tissue thickness (STT), and graft shrinkage after implant treatment.
The current randomized clinical trial included 20 patients with inadequate KMW and requiring placement of dental implant. The participants were randomly distributed into two groups. Group 1 received FGG 2 months before placing the dental implant while group 2 received the FGG at the second stage of implant surgery. The following parameters were evaluated and statistically analyzed at baseline, day 7, as well as 1, 3, 6, and 9 months postoperatively, KMW, STT and shrinkage percentage of the FGG.
Twenty patients with ages ranging from 30 to 55 years with reduced KMW were included in the current study. Both groups showed a significant increase in KMW and STT on day7, 1, 3, 6, and 9 months postoperatively while the intergroup comparison showed no significant differences in KWM, STT, and shrinkage percentage between both groups at the same point of time.
The two study groups' outcomes demonstrated that the FGG can be placed either before or after dental implants to improve the soft tissue augmentation surrounding the implants. However, the implantologist should take patient preferences and long-term stability into consideration.
本研究通过测量角化黏膜宽度（KMW）、软组织厚度（STT）以及种植治疗后移植物收缩情况，来评估游离龈瓣移植（FGG）时机对改善牙种植体美学效果、功能及长期稳定性的影响。
当前这项随机临床试验纳入了20例KMW不足且需要植入牙种植体的患者。参与者被随机分为两组。第1组在植入牙种植体前2个月接受FGG，而第2组在种植手术的第二阶段接受FGG。在基线、第7天以及术后1、3、6和9个月对以下参数进行评估并进行统计学分析，即KMW、STT以及FGG的收缩百分比。
本研究纳入了20例年龄在30至55岁之间、KMW降低的患者。两组在术后第7天、1、3、6和9个月时KMW和STT均显著增加，而组间比较显示在同一时间点两组之间的KWM、STT和收缩百分比无显著差异。
两个研究组的结果表明，FGG可在牙种植体植入之前或之后进行，以改善种植体周围的软组织增量。然而，种植医生应考虑患者的偏好和长期稳定性。
