Del Pizzo Massimo, Modica Fabio, Bethaz Nicola, Priotto Patrik, Romagnoli Roberto
Department of Periodontology, School of Dental Medicine, University of Turin, Turin, Italy.
J Clin Periodontol. 2002 Sep;29(9):848-54. doi: 10.1034/j.1600-051x.2002.290910.x.
The aim of this study is to evaluate early healing results of the palatal wound by comparing three different surgical procedures for harvesting a connective tissue graft: the single-incision (SI), the free gingival graft (FGG) and the trap-door (TD) techniques.
36 patients requiring a root coverage procedure were selected for treatment using a bilaminar technique and randomly assigned (12 per group) to the FGG, TD or SI groups. The size of the graft was standardised to 12 x 8 mm and the thickness ranged from 1 to 1.5 mm. The following parameters were recorded at 1, 2, 3, 4, 6 and 8 weeks postsurgery: immediate and delayed bleeding (iB, dB), sensibility (S), complete epithelialisation (CE), discomfort (D), and variation of feeding habits (FH).
The difference in CE between the SI and FGG groups was statistically significant at the third postoperative week (100% and 50%, respectively). The discomfort rate at the first week postsurgery was the same in the SI and TD groups (50% without discomfort), but results were statistically significant different in the FGG group (0% without discomfort). No significant differences were found between the three groups for the other parameters.
Statistically significant differences were found between the SI and FGG techniques in terms of CE, which occurred faster in the SI group. The discomfort rate recorded for both SI and TD groups was significantly lower than for FGG group. No marked differences were noted between SI and TD procedures. The latter was confirmed by patient interviews. The results of this preliminary study have little statistical significance because of the limited number of patients but they represent an important basis for a comparative clinical study, with a larger sample of participants, which is currently in progress.
本研究旨在通过比较三种不同的结缔组织移植手术方法，即单切口（SI）、游离龈瓣移植（FGG）和活板门（TD）技术，来评估腭部伤口的早期愈合结果。
选取36例需要进行根面覆盖手术的患者，采用双层技术进行治疗，并随机分为三组（每组12例），分别采用FGG、TD或SI技术。移植片大小标准化为12×8mm，厚度为1至1.5mm。在术后1、2、3、4、6和8周记录以下参数：即刻和延迟出血（iB、dB）、感觉（S）、完全上皮化（CE）、不适（D）以及饮食习惯变化（FH）。
SI组和FGG组在术后第三周的CE差异具有统计学意义（分别为100%和50%）。SI组和TD组术后第一周的不适率相同（50%无不适），但FGG组结果差异具有统计学意义（0%无不适）。三组在其他参数上未发现显著差异。
SI技术和FGG技术在CE方面存在统计学显著差异，SI组的CE出现得更快。SI组和TD组记录的不适率均显著低于FGG组。SI和TD手术之间未发现明显差异。患者访谈证实了这一点。由于患者数量有限，这项初步研究的结果统计学意义不大，但它们是正在进行的一项更大样本参与者的比较临床研究的重要基础。
