Mörmann W, Schaer F, Firestone A R
J Periodontol. 1981 Feb;52(2):74-80. doi: 10.1902/jop.1981.52.2.74.
The purpose of this clinical investigation was to determine what effects the thickness of a free gingival graft has on the processes of revascularization and shrinkage. With the aid of a Mucotome, very thin, thin, and intermediate thickness grafts were excised from the palate. These were placed in the mandible or maxilla of patients with insufficient attached gingiva. Vertical graft shrinkage was measured at 15, 30, 90, and 360 days after surgery. Angiographic studies were made on 24 healing grafts. From the day of grafting to 360 days afterward the percentages of shrinkage were: very thin, 45%; thin, 44%; intermediate, 38%. The angiographic study demonstrated that rapid revascularization can be expected when uniform grafts of thin to intermediate thickness are placed on a periosteal recipient site which has been carefully freed of loose connective tissue and muscle attachments. An uneven, thick graft placed on a site of denuded bone favored a prolonged period of revascularization and delayed healing.
本临床研究的目的是确定游离龈瓣的厚度对血管再生和收缩过程有何影响。借助切龈刀，从腭部切取极薄、薄和中等厚度的龈瓣。将这些龈瓣置于附着龈不足的患者的下颌骨或上颌骨。在术后15、30、90和360天测量垂直方向的龈瓣收缩情况。对24个愈合中的龈瓣进行了血管造影研究。从植瓣当天至术后360天，收缩百分比分别为：极薄，45%；薄，44%；中等，38%。血管造影研究表明，当将薄至中等厚度的均匀龈瓣置于已仔细清除疏松结缔组织和肌肉附着的骨膜受区时，可预期快速的血管再生。置于裸露骨部位的不均匀厚龈瓣有利于延长血管再生期并延迟愈合。
