Ashok Nipun, Warad Shivaraj, Singh V P Prabath, Chaudhari Harshal, Narayanan Arun, Rodrigues Jean
Department of Periodontics, Alfarabi College of Dentistry, Riyadh, Saudi Arabia.
Indian J Dent Res. 2013 May-Jun;24(3):289-93. doi: 10.4103/0970-9290.117988.
The aim of this study was to investigate the prevalence of archaea in the subgingival crevices of patients with chronic periodontitis in an Indian population.
Thirty four chronic periodontitis patients and 16 healthy subjects were included in the study. Thirty four subgingival plaque samples were collected from chronic periodontitis patients, of which 17 samples were from deep pockets and 17 were from shallow pockets. Sixteen subgingival plaque samples were collected from healthy subjects. The presence of archaea in plaque samples was detected by polymerase chain reaction.
Prevalence of archaea in chronic periodontitis patients was 29.4% and in healthy subjects was 11.8%, which was not a statistically significant difference. However, prevalence of archaea, in deep periodontal pockets was 47.1%, in shallow periodontal pockets was 11.8% and in healthy sulcus was 12.5%, respectively. Thus, showing a statistically significant difference between prevalence of archaea in deep periodontal pockets (47.1%) and healthy sulcus (12.5%) and also between deep periodontal pockets (47.1%) and shallow pockets (11.8%), respectively.
Archaea were detected commonly in severe periodontitis suggesting that these microorganisms might be involved in the pathogenesis of periodontal diseases.
本研究旨在调查印度人群中慢性牙周炎患者龈下裂隙中古菌的患病率。
本研究纳入了34例慢性牙周炎患者和16例健康受试者。从慢性牙周炎患者中收集了34份龈下菌斑样本,其中17份样本来自深牙周袋,17份来自浅牙周袋。从健康受试者中收集了16份龈下菌斑样本。采用聚合酶链反应检测菌斑样本中古菌的存在情况。
慢性牙周炎患者中古菌的患病率为29.4%,健康受试者中为11.8%,差异无统计学意义。然而,深牙周袋中古菌的患病率为47.1%,浅牙周袋中为11.8%,健康龈沟中为12.5%。因此,深牙周袋(47.1%)与健康龈沟(12.5%)以及深牙周袋(47.1%)与浅牙周袋(11.8%)中古菌患病率之间分别存在统计学显著差异。
在重度牙周炎中普遍检测到古菌,提示这些微生物可能参与牙周疾病的发病机制。