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Chinese Journal of Stomatological Research(Electronic Edition) ›› 2012, Vol. 06 ›› Issue (06): 512-515. doi: 10.3877/cma.j.issn.1674-1366.2012.06.007

• Original Articles • Previous Articles    

Analysis of relationship between symptoms of the clinical patients and the detection of enterococcus faecalis in extraradicular biofilm of refractory periapical periodontitis

Lei MENG1, Zhi-shan LU1,(), Zhong-hao LIU1, Tao-wen ZHANG1, Guang-hui REN1   

  1. 1.Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai 264008, China
  • Received:2012-08-13 Online:2012-12-01 Published:2025-02-19
  • Contact: Zhi-shan LU

Abstract:

Objective

Identification and detection of Enterococcus faecalis (E.faecalis) isolated from extraradicular biofilm in refractory periapical periodontitis, in order to analyze the relationship between the occurrence of E.faecalis and clinical symptom.

Methods

Forty-two single root teeth which need periapical surgery were collected, and the clinical symptoms and physical signs were recorded.Bacterium samples from extraradicular biofilm were taken. The occurrence of E.faecalis by means of culture and polymerase chain reaction was investigated. The presence of E.faecalis and clinical signs was assessed to investigate the potential relationship between clinical findings.

Results

Culture and PCR revealed that the detection rates of E.faecalis was 52.4% and 71.4%, respectively, there was statistical significance (P <0.05); The detection rates of E.faecalis by means of PCR between the pain and the painless group showed statistical significance (P <0.05).

Conclusions

PCR was sensitive in detecting E.faecalis in root apex of refractory periapical periodontitis. The occurrence of E.faecalis in cases of refractory periapical periodontitis correlates with pain.

Key words: Refractory periapical periodontitis, Biofilm, Enterococcus faecalis

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