Prevalence of Actinobacillus actinomycetemcomitans in saliva of different types of periodontitis
10.3321/j.issn:1002-0098.2008.07.007
- VernacularTitle:牙周炎患者唾液中伴放线放线杆菌的检出状况分析
- Author:
Xiang-Hui FENG
1
;
Li ZHANG
;
Huan-Xin MENG
;
Li XU
;
Zhi-Bin CHEN
;
Dong SHI
Author Information
1. 北京大学口腔医学院(口腔医院)
- Keywords:
Periodontits;
Actinobacillus actinomycetemcomitans;
Saliva;
Dental plaque
- From:
Chinese Journal of Stomatology
2008;43(7):402-405
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the prevalence of Actinobacillus actinomyeetemcomitans (Aa) in whole saliva of different types of periodontitis and compare the detections of Aa between saliva and pooled subgingival plaque sample, and analyze the relationship between Aa and clinical conditions. Methods Unstimulated whole saliva samples and pooled subgingival samples were collected from 50 aggressive periodontitis (AgP) patients, 48 chronic periodontitis (CP) patients and 25 subjects with no periodontitis, and Aa was detected in these samples by PCR method. Results The prevalence of Aa in whole saliva of AgP patients was significantly higher than in subjects with no periodontitis (32% vs. 4%, P <0. 01) and CP patients (32% vs. 15%, P <0. 05). Aa was also more frequently detected in whole saliva sample than in pooled subgingival sample of AgP patients (32% vs. 16%, P < 0.05). Subjects younger than 30 year sold were more likely to present Aa in whole saliva (OR = 3.23, P < 0. 05) and percentage of sites with bleeding index(BI) ≥3 over 70% was a risk indicator for the presence of Aa in whole saliva. Conclusions The detection of Aa in whole saliva sample of AgP patients was more frequent than in pooled subgingival plaque samples, and also more frequent than in CP patients and subjects with no periodontitis, which suggest that Aa may participate in the initiation and progression of aggressive periodontitis.
