Perelli Michele, Abundo Roberto, Corrente Giuseppe, Saccone Carlo, Zambelli Marta
University of Pennsylvania, Philadelphia, PA.
J Craniofac Surg. 2015 May;26(3):729-30. doi: 10.1097/SCS.0000000000001602.
Bone and soft tissue remodeling after tooth extraction may have dramatic effects. The socket preservation technique has demonstrated to be effective in maintaining volume before implant placement. The Pink Esthetic Score (PES) is an easy and complete evaluation of esthetic parameters. The aim of this study was to compare the PES index of anterior teeth needing to be replaced and the correspondent implant-supported prostheses after the socket preservation technique with 1 year of follow-up. Twenty-four patients were enrolled in this study. Eighteen maxillary central incisors and 6 maxillary lateral incisors were extracted, and then, every alveolar site was treated with the socket preservation technique and filled with Bio-Oss, mixed with fibrin glue, and covered with a collagen sponge. After 6 months of undisturbed healing, implants were placed and left healing for 4 months. After they were regularly loaded and at 1 year of follow-up, peri-implant PESs were recorded. All implants integrated successfully. No dropouts were recorded. Comparing PES results before extraction (mean, 12.25) and after implant loading (mean, 12.35), those around implants are similar if not better, and there are no statistically significant differences as analyzed with the t-test. The socket preservation technique combined with delayed implant placement and a standard healing time before implant loading has demonstrated to be effective in maintaining volumes and also esthetic values around implants compared with PES values before tooth extraction.
拔牙后骨组织和软组织的重塑可能会产生显著影响。牙槽窝保存技术已被证明在种植体植入前保持骨量方面是有效的。粉色美学评分(PES)是一种对美学参数进行简单而全面的评估方法。本研究的目的是比较采用牙槽窝保存技术并随访1年的前牙缺失患者及其相应种植体支持修复体的PES指数。本研究共纳入24例患者。拔除了18颗上颌中切牙和6颗上颌侧切牙,然后对每个牙槽窝采用牙槽窝保存技术进行处理,用Bio-Oss混合纤维蛋白胶填充,并覆盖胶原海绵。在无干扰愈合6个月后植入种植体,再愈合4个月。在种植体常规加载后及随访1年时,记录种植体周围的PES评分。所有种植体均成功愈合。无失访记录。比较拔牙前(平均12.25)和种植体加载后(平均12.35)的PES结果,种植体周围的评分即便没有更好也相似,经t检验分析,无统计学显著差异。与拔牙前的PES值相比,牙槽窝保存技术结合延期种植体植入以及种植体加载前的标准愈合时间已被证明在维持种植体周围骨量和美学价值方面是有效的。