Donos Nikolaos, D'Aiuto Francesco, Retzepi Maria, Tonetti Maurizio
Eastman Dental Institute, Department of Periodontology, University College London, UK.
J Periodontal Res. 2005 Apr;40(2):129-37. doi: 10.1111/j.1600-0765.2005.00777.x.
The aim of this pilot study was to evaluate the applicability of laser Doppler flowmetry (LDF) in recording the gingival blood flow following periodontal surgery.
Five patients suffering from advanced chronic generalized periodontitis were included in the study. After completion of basic periodontal therapy, full-mouth plaque score, bleeding on probing, gingival recession and clinical attachment level were recorded. The upper anterior areas with a pocket probing depth of 6 mm or more were treated with an access flap. LDF recordings were performed in both the buccal and palatal aspect of the operated areas with the aid of an individual acrylic stent at the day of the surgery, prior to local anaesthesia, 3 min following anaesthesia, immediately after the operation and at days 1, 2, 3, 4, 7, 15, 30 and 60 following operation.
Overall, the blood flow decreased immediately following anaesthesia and remained in lower values compared to baseline immediately following operation. The gingival blood flow presented an overall increase in comparison to baseline values until the 7th day following surgery at the buccal and palatal interdental sites, as well as at the alveolar mucosa sites. By the 15th day, as well as at the following observation periods of 30 and 60 days, the gingival blood flow values at the palatal and alveolar mucosa sites were very similar to baseline. Increased blood flow changes were observed at 30 and 60 days following operation at the buccal interdental sites.
The results of the present pilot study suggest that the LDF might present clinical applicability in recording changes in gingival blood flow following periodontal surgery.
本初步研究的目的是评估激光多普勒血流仪（LDF）在记录牙周手术后牙龈血流方面的适用性。
本研究纳入了5例患有晚期慢性广泛性牙周炎的患者。在完成基础牙周治疗后，记录全口菌斑评分、探诊出血、牙龈退缩和临床附着水平。对探诊深度为6mm或更深的上前牙区域进行翻瓣手术治疗。在手术当天、局部麻醉前、麻醉后3分钟、手术结束后即刻以及术后第1、2、3、4、7、15、30和60天，借助个体化丙烯酸支架在手术区域的颊侧和腭侧进行LDF记录。
总体而言，麻醉后血流立即下降，与手术结束后即刻的基线相比，血流值仍处于较低水平。与基线值相比，在颊侧和腭侧牙间部位以及牙槽黏膜部位，术后第7天前牙龈血流总体呈增加趋势。到第15天以及随后的30天和60天观察期，腭侧和牙槽黏膜部位的牙龈血流值与基线非常相似。术后第30天和60天在颊侧牙间部位观察到血流变化增加。
本初步研究结果表明，LDF在记录牙周手术后牙龈血流变化方面可能具有临床适用性。
