Burkhardt R, Joss A, Lang N P
School of Dental Medicine, University of Berne, Berne, Switzerland.
Clin Oral Implants Res. 2008 May;19(5):451-7. doi: 10.1111/j.1600-0501.2007.01497.x. Epub 2008 Mar 26.
To evaluate the healing outcome of soft tissue dehiscence coverage at implant sites.
Ten patients with one mucosal recession defect at an implant site and a contralateral unrestored clinical crown without recession were recruited. The soft tissue recessions were surgically covered using a coronally advanced flap in combination with a free connective tissue graft. Healing was studied at 1, 3 and 6 months post-operatively.
Soft tissue dehiscences were covered with a coronal overcompensation of the flap margin up to 1.2 mm after the procedure. After 1 month, the coverage shrank to a mean of 75%, after 3 months to 70% and after 6 months to 66%.
The implant sites revealed a substantial, clinically significant improvement following coronal mucosal displacement in combination with connective tissue grafting, but in none of the sites, a could complete implant soft tissue dehiscence coverage be achieved.
评估种植体部位软组织裂开覆盖的愈合结果。
招募10例患者,其种植体部位有一处黏膜退缩缺损,对侧有未修复的临床牙冠且无退缩。采用冠向推进瓣联合游离结缔组织移植术对软组织退缩进行手术覆盖。在术后1、3和6个月研究愈合情况。
术后,软组织裂开被覆盖,瓣缘冠状面过度补偿达1.2毫米。1个月后,覆盖面积缩小至平均75%,3个月后至70%,6个月后至66%。
种植体部位在冠向黏膜移位联合结缔组织移植后显示出显著的、具有临床意义的改善,但在所有部位均未实现种植体软组织裂开的完全覆盖。