Perret Fabio, Romano Federica, Ferrarotti Francesco, Aimetti Mario
Int J Periodontics Restorative Dent. 2019 January/February;39(1):97–105. doi: 10.11607/prd.3278. Epub 2018 Apr 20.
This case series evaluated bone dimensional changes following the application of an occlusive titanium barrier on severely resorbed fresh extraction sockets to achieve bone regeneration. Six extraction sites with buccal bone loss were filled with a xenograft and covered with a titanium plate fixed by two miniscrews and left intentionally exposed. No infection occurred. After 4 months of healing, sufficient hard tissue had formed to allow implant insertion. Mean vertical bone gain was 7.3 ± 2.2 mm at the buccal side and 4.2 ± 1.2 mm at the lingual side. The average bone width augmentation was 23 ± 1.0 mm. At 24 months, all implants were clinically successful. Based on these preliminary findings, occlusive titanium barriers without primary closure may be successfully used in immediate alveolar reconstruction procedures.
本病例系列评估了在严重吸收的新鲜拔牙窝上应用封闭性钛屏障以实现骨再生后的骨尺寸变化。六个存在颊侧骨吸收的拔牙位点用异种移植物填充,并用两个微型螺钉固定的钛板覆盖,且有意使其暴露。未发生感染。愈合4个月后,形成了足够的硬组织以允许植入种植体。颊侧平均垂直骨增量为7.3±2.2毫米,舌侧为4.2±1.2毫米。平均骨宽度增加为23±1.0毫米。在24个月时,所有种植体在临床上均获成功。基于这些初步发现,未进行一期缝合的封闭性钛屏障可成功用于即刻牙槽骨重建手术。