PDF(Pubmed)
Abstract：
BACKGROUND: The aim of this study was to assess the outcomes of the combination technique of strip free gingival grafts (SFGG) and xenogeneic collagen matrix (XCM) in augmenting the width of keratinized mucosa (KMW) around dental implants, and compare its efficacy with the historical control group (FGG).
METHODS: Thirteen patients with at least one site with KMW ≤ 2 mm after implant surgery were included and received SFGG in combination with XCM. Another thirteen patients with the same inclusion and exclusion criteria from the previous trial received FGG alone. The same outcomes as the previous trial were evaluated. KMW, thickness of keratinized mucosa (KMT), gingival index (GI) and probing depth (PD) were measured at baseline, 2 and 6 months. Postoperative pain, patient satisfaction and aesthetic outcomes were also assessed.
RESULTS: At 6 months after surgery, the combination technique could attain 3.3 ± 1.6 mm of KMW. No significant change could be detected in GI or PD at 6 months compared to those at 2 months (p > 0.05). The postoperative pain and patient satisfaction in VAS were 2.6 ± 1.2 and 9.5 ± 1.2. The total score of aesthetic outcomes was 3.8 ± 1.2. In the historical FGG group, 4.6 ± 1.6 mm of KMW was reported at 6 months, and the total score of aesthetic outcomes was higher than the combination technique (4.8 ± 0.7 vs. 3.8 ± 1.2, p < 0.05).
CONCLUSIONS: The combination technique of SFGG and XCM could increase KMW and maintain peri-implant health. However, this combination technique was associated with inferior augmentation and aesthetic outcomes compared with FGG alone.
BACKGROUND: This clinical trial was registered in the Chinese Clinical Trial Registry with registration number ChiCTR2200057670 on 15/03/2022.
METHODS: Thirteen patients with at least one site with KMW ≤ 2 mm after implant surgery were included and received SFGG in combination with XCM. Another thirteen patients with the same inclusion and exclusion criteria from the previous trial received FGG alone. The same outcomes as the previous trial were evaluated. KMW, thickness of keratinized mucosa (KMT), gingival index (GI) and probing depth (PD) were measured at baseline, 2 and 6 months. Postoperative pain, patient satisfaction and aesthetic outcomes were also assessed.
RESULTS: At 6 months after surgery, the combination technique could attain 3.3 ± 1.6 mm of KMW. No significant change could be detected in GI or PD at 6 months compared to those at 2 months (p > 0.05). The postoperative pain and patient satisfaction in VAS were 2.6 ± 1.2 and 9.5 ± 1.2. The total score of aesthetic outcomes was 3.8 ± 1.2. In the historical FGG group, 4.6 ± 1.6 mm of KMW was reported at 6 months, and the total score of aesthetic outcomes was higher than the combination technique (4.8 ± 0.7 vs. 3.8 ± 1.2, p < 0.05).
CONCLUSIONS: The combination technique of SFGG and XCM could increase KMW and maintain peri-implant health. However, this combination technique was associated with inferior augmentation and aesthetic outcomes compared with FGG alone.
BACKGROUND: This clinical trial was registered in the Chinese Clinical Trial Registry with registration number ChiCTR2200057670 on 15/03/2022.
摘要：
背景：这项研究的目的是评估无齿龈移植物（SFGG）和异种胶原基质（XCM）的组合技术在增加周围角化粘膜（KMW）宽度方面的结果。并将其疗效与历史对照组（FGG）进行比较。
方法：纳入13例植入手术后至少有一处KMW≤2mm的患者，并接受SFGG联合XCM治疗。另外13名具有与先前试验相同的纳入和排除标准的患者单独接受FGG。评估与先前试验相同的结果。KMW,角化粘膜厚度（KMT），在基线测量牙龈指数（GI）和探测深度（PD），2和6个月。术后疼痛,还评估了患者满意度和美学结果.
结果：手术后6个月，组合技术可达到3.3±1.6mmKMW。与2个月时相比，6个月时在GI或PD中未检测到显着变化（p>0.05）。术后疼痛和患者满意度分别为2.6±1.2和9.5±1.2。美学结果的总分为3.8±1.2。在历史的FGG组中，6个月时报告KMW为4.6±1.6mm,美学结果的总分高于组合技术（4.8±0.7vs.3.8±1.2，p<0.05）。
结论：SFGG和XCM的组合技术可以增加KMW并维持种植体周围的健康。然而,与单独使用FGG相比,这种组合技术的增强效果和美学效果较差.
背景：该临床试验于2022年3月15日在中国临床试验注册中心注册，注册号为ChiCTR2200057670。
方法：纳入13例植入手术后至少有一处KMW≤2mm的患者，并接受SFGG联合XCM治疗。另外13名具有与先前试验相同的纳入和排除标准的患者单独接受FGG。评估与先前试验相同的结果。KMW,角化粘膜厚度（KMT），在基线测量牙龈指数（GI）和探测深度（PD），2和6个月。术后疼痛,还评估了患者满意度和美学结果.
结果：手术后6个月，组合技术可达到3.3±1.6mmKMW。与2个月时相比，6个月时在GI或PD中未检测到显着变化（p>0.05）。术后疼痛和患者满意度分别为2.6±1.2和9.5±1.2。美学结果的总分为3.8±1.2。在历史的FGG组中，6个月时报告KMW为4.6±1.6mm,美学结果的总分高于组合技术（4.8±0.7vs.3.8±1.2，p<0.05）。
结论：SFGG和XCM的组合技术可以增加KMW并维持种植体周围的健康。然而,与单独使用FGG相比,这种组合技术的增强效果和美学效果较差.
背景：该临床试验于2022年3月15日在中国临床试验注册中心注册，注册号为ChiCTR2200057670。
