Fowler E B, Breault L G, Rebitski G
Periodontics, United States Army Dental Activity, Fort Wainwright, AK, USA.
J Periodontol. 2000 Aug;71(8):1353-9. doi: 10.1902/jop.2000.71.8.1353.
Alveolar ridge deformities are usually the result of trauma, periodontal disease, surgical insult, or developmental defects. Preventing ridge collapse with the extraction of maxillary anterior teeth is vital to an esthetic restorative result. Several techniques are available to prevent ridge collapse. In these case presentations, ridge preservation was achieved utilizing an acellular dermal matrix as a barrier membrane with a demineralized freeze-dried bone allograft. This report demonstrated an acceptable esthetic result with no loss of ridge height or width. Soft tissue dimensions were also preserved. The two graft materials were well accepted by the body and healing was rapid and without significant discomfort. The technique illustrated provides the surgeon with another option to prevent ridge collapse and ultimately improve esthetics.
牙槽嵴畸形通常是由创伤、牙周病、手术损伤或发育缺陷引起的。在上颌前牙拔除时防止牙槽嵴塌陷对于获得美观的修复效果至关重要。有几种技术可用于防止牙槽嵴塌陷。在这些病例报告中，通过使用脱细胞真皮基质作为屏障膜并联合脱矿冻干同种异体骨移植实现了牙槽嵴保存。本报告显示出可接受的美学效果，牙槽嵴高度和宽度均未丧失。软组织尺寸也得以保留。两种移植材料均被机体良好接受，愈合迅速且无明显不适。所阐述的技术为外科医生提供了另一种防止牙槽嵴塌陷并最终改善美观的选择。
