Lafaurie Gloria Inés, Mayorga-Fayad Isabel, Torres María Fernanda, Castillo Diana Marcela, Aya Maria Rosario, Barón Alexandra, Hurtado Paola Andrea
Instituto UIBO (Unidad de Investigación Básica Oral), Universidad El Bosque, Bogotá, Colombia.
J Clin Periodontol. 2007 Oct;34(10):873-9. doi: 10.1111/j.1600-051X.2007.01125.x.
The objective of this study was to evaluate the frequency of periodontopathic and other subgingival anaerobic and facultative bacteria in the bloodstream following scaling and root planing (SRP).
Forty-two patients with severe generalized chronic periodontitis (GChP) and generalized aggressive periodontitis (GAgP) were included in the study. Four samples of peripheric blood were drawn from the cubital vein at different times: Pre-treatment: immediately before the SRP procedure (T1), immediately after treatment (T2), 15 min. post-treatment (T3) and 30 min. post-treatment (T4). In order to identify the presence of microorganisms in blood, subcultures were conducted under anaerobic conditions.
80.9% of the patients presented positive cultures after SRP and it occurred more frequently immediately after treatment; however, 19% of the patients still had microorganisms in the bloodstream 30 min. after the procedure. The periodontopathic microorganisms more frequently identified were Porphyromonas gingivalis and Micromonas micros. Campylobacter spp., Eikenella corrodens, Tannerella forsythensis, Fusobacterium spp. and Prevotella intermedia were isolated less often. Actinomyces spp. were also found frequently during bacteraemia after SRP.
SRP induced bacteraemia associated with anaerobic bacteria, especially in patients with periodontal disease.
本研究的目的是评估龈下刮治术（SRP）后牙周病性及其他龈下厌氧和兼性细菌在血流中的出现频率。
本研究纳入了42例重度广泛性慢性牙周炎（GChP）和广泛性侵袭性牙周炎（GAgP）患者。在不同时间从肘静脉采集四份外周血样本：治疗前：SRP手术前即刻（T1）、治疗后即刻（T2）、治疗后15分钟（T3）和治疗后30分钟（T4）。为了确定血液中微生物的存在，在厌氧条件下进行传代培养。
80.9%的患者在SRP后培养结果呈阳性，且在治疗后即刻更频繁出现；然而，19%的患者在手术30分钟后血流中仍有微生物。最常鉴定出的牙周病性微生物是牙龈卟啉单胞菌和微小微单胞菌。弯曲杆菌属、啮蚀艾肯菌、福赛坦氏菌、梭杆菌属和中间普氏菌分离较少。放线菌属在SRP后的菌血症期间也经常被发现。
SRP可引发与厌氧菌相关的菌血症，尤其是在牙周病患者中。
