De Annuntiis Carlo, Testarelli Luca, Guarnieri Renzo
Private Perio-Implant Practive, 00100 Rome, Italy.
Department of Oral and Maxillofacial Sciences, University La Sapienza, 00100 Rome, Italy.
Materials (Basel). 2022 May 31;15(11):3937. doi: 10.3390/ma15113937.
Plastic peri-implant surgical procedures aiming to increase soft tissue volume around dental implants have long been well-described. These are represented by: pedicle soft tissue grafts (rotational flap procedures and advanced flap procedures) and free soft tissue grafts (epithelialized, also called free gingival graft (FGG), and non-epithelialized, also called, connective tissue graft (CTG) or a combination of both. To bypass the drawback connected with autologous grafts harvesting, xenogenic collagen matrices (XCM)s and collagen-based matrices derived from porcine dermis (PDXCM)s have been introduced, as an alternative, in plastic peri-implant procedures.
This review is aimed to evaluate and to critically analyze the available evidence on the effectiveness of XCMs and PDXCMs in soft tissue volume augmentation around dental implants. Moreover, a clinical case with a new soft tissue grafting procedure technique (Guided Soft Tissue Regeneration, GSTR) is presented.
An electronic search was performed on the MEDLINE database, SCOPUS, Cochrane Library and Web of Science. The electronic search provided a total of 133 articles. One hundred and twenty-eight not meeting the inclusion criteria were excluded. Seven articles of human randomized clinical trials were selected. A total number of 108 patients were treated with CTG, and 110 patients with XCM.
in peri-implant soft tissue augmentation procedures, XCMs seem an effective alternative to CTGs, associated with lower patient morbidity and lower operative times.
旨在增加牙种植体周围软组织体积的种植体周围整形手术早已被详细描述。这些手术包括：带蒂软组织移植（旋转瓣手术和推进瓣手术）和游离软组织移植（上皮化的，也称为游离龈移植术（FGG），以及非上皮化的，也称为结缔组织移植术（CTG）或两者结合。为了克服与自体移植采集相关的缺点，已引入异种胶原基质（XCM）和源自猪真皮的胶原基质（PDXCM）作为种植体周围整形手术的替代方法。
本综述旨在评估和批判性分析关于XCM和PDXCM在牙种植体周围软组织增量有效性的现有证据。此外，还介绍了一种采用新的软组织移植手术技术（引导性软组织再生，GSTR）的临床病例。
在MEDLINE数据库、SCOPUS、Cochrane图书馆和科学网进行电子检索。电子检索共获得133篇文章。排除128篇不符合纳入标准的文章。选择了7篇人类随机临床试验文章。共有108例患者接受了CTG治疗，110例患者接受了XCM治疗。
在种植体周围软组织增量手术中，XCM似乎是CTG的有效替代方法，具有较低的患者发病率和较短的手术时间。
