Department of Head and Neck, Division of Oral Surgery and Implantology, Institute of Clinical Dentistry, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
Department of Head and Neck, Division of Oral and Maxillofacial Surgery, Institute of Clinical Dentistry, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
Biomed Res Int. 2021 Jan 5;2021:8822804. doi: 10.1155/2021/8822804. eCollection 2021.
The purpose of this clinical research was to evaluate peri-implant marginal changes around immediate implants placed either with the application of SCTG or XCM or without soft tissue grafting. A total of 48 patients requiring a single implant-supported restoration in the anterior jaw were selected for inclusion. Three surgical procedures were performed, as follows: type 1 implant with subepithelial connective tissue graft (SCTG), type 1 implant with xenogenic collagen matrix (XCM), and type 1 implant without soft tissue augmentation (NG) (control group). The marginal change of peri-implant soft tissue, facial soft tissue thickness (FSTT), peri-implant health status, esthetics, and patient satisfaction were assessed at one year after surgery. All of the placed implants showed a survival rate of 100%. No significant differences in FSTT were recorded between the SCTG group and the XCM group after treatment ( > 0.05), while the NG group presented a significant difference ( < 0.05). Patients in the NG group lost significantly more in the buccal marginal level than did patients in the SCTG group and those in the XCM group ( < 0.05). The favourable success rate recorded in all groups confirmed immediate tooth replacement as a choice of treatment for a missing anterior single tooth. The NG group presented significant changes of FSTT and buccal marginal level, while XCM constituted a viable alternative to SCTG.
本临床研究的目的是评估即刻植入物周围的边缘变化，这些植入物是应用 SCTG、XCM 还是不进行软组织移植放置的。共选择了 48 名需要在前颌植入单颗种植体修复的患者。进行了三种手术程序，如下：具有上皮下结缔组织移植物（SCTG）的 1 型植入物、具有异种胶原基质（XCM）的 1 型植入物和不进行软组织增强的 1 型植入物（NG）（对照组）。术后一年评估种植体周围软组织的边缘变化、面部软组织厚度（FSTT）、种植体周围健康状况、美观和患者满意度。所有植入物的存活率均为 100%。治疗后，SCTG 组和 XCM 组之间的 FSTT 无显著差异（>0.05），而 NG 组则有显著差异（<0.05）。NG 组的颊侧边缘水平明显比 SCTG 组和 XCM 组的患者损失更多（<0.05）。所有组记录的良好成功率证实了即刻牙替换是缺失前单颗牙治疗的选择。NG 组 FSTT 和颊侧边缘水平有显著变化，而 XCM 则构成 SCTG 的可行替代方案。
