Roos-Jansåker Ann-Marie, Renvert Helena, Lindahl Christel, Renvert Stefan
Department of Health Sciences, Kristianstad University, Kristianstad, Sweden.
J Clin Periodontol. 2007 Aug;34(8):723-7. doi: 10.1111/j.1600-051X.2007.01098.x. Epub 2007 May 29.
The aim was to study a regenerative surgical treatment modality for peri-implantitis employing submerged healing.
Twelve patients, having a minimum of one osseointegrated implant with peri-implantitis, with a progressive loss of >or=3 threads (1.8 mm) following the first year of healing were involved in the study. After surgical exposure of the defect, granulomatous tissue was removed and the implant surface was treated using 3% hydrogen peroxide. The bone defects were filled with a bone substitute (Algipore), a resorbable membrane (Osseoquest) was placed over the grafted defect and a cover screw was connected to the fixture. The implant was then covered by flaps and submerged healing was allowed for 6 months. After 6 months the abutment was re-connected to the supra-structure.
A 1-year follow-up demonstrated clinical and radiographic improvements. Probing depth was reduced by 4.2 mm and a mean defect fill of 2.3 mm was obtained.
Treatment of peri-implant defects using a bone graft substitute combined with a resorbable membrane and submerged healing results in defect fill and clinical healthier situations.
本研究旨在探讨采用潜行愈合方式治疗种植体周围炎的再生性外科治疗方法。
12例患者纳入研究，这些患者至少有一枚种植体发生种植体周围炎，且在愈合1年后种植体螺纹出现≥3个（1.8毫米）的进行性丧失。手术暴露缺损后，清除肉芽组织，并用3%过氧化氢处理种植体表面。骨缺损用骨替代材料（Algipore）填充，在植骨缺损上方放置可吸收膜（Osseoquest），并将覆盖螺丝连接到种植体上。然后用皮瓣覆盖种植体，使其潜行愈合6个月。6个月后，将基台重新连接到上部结构。
1年随访显示临床和影像学均有改善。探诊深度减少了4.2毫米，平均缺损填充量为2.3毫米。
使用骨移植替代材料联合可吸收膜及潜行愈合治疗种植体周围缺损可实现缺损填充，并使临床状况更健康。
