Correlation of periodontal pathogens in concurrent endodontic-periodontal diseases

  • Lačević A
  • Foschi F
  • Pojskić L
  • et al.
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Abstract

Objectives: This study investigated the correlation between Tannerella forsythia, Porphyromonas gingivalis, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans at dual sites in concurrent endodontic-periodontal diseases. Material and methods: Samples were collected from endodontium and periodontium in cases of concurrent endodontic-periodontal diseases from thirty participants. The sensitivity and specificity of SYBR Green real-time PCR was used to identify the targeted species. Absolute number of targeted genome copies in tested samples were extrapolated from respective calibration curve. Results: No statistical difference was found in the number of detected endodonticperiodontal pathogens between the endodontium and periodontium. The Pearson test detected significant correlation (P<0.001) between targeted bacteria; T. forsythia, F. nucleatum, and P. gingivalis from endodontic-periodontal lesions. Synergistic component observed separately in endodontic biofilm was found only between T. forsythia and F. nucleatum (r=0.380, P=0.03) while in periodontal biofilm T. forsythia, F. nucleatum and P. gingivalis gave high synergism result (P<0.0001). Correlation analysis showed that T. forsythia in primary endodontic infection and in periodontal lesion was significantly decreased with the increase of patients age (r=-0.308, P=0.017). Conclusions: Correlation between targeted bacterial species levels from concurrent endodontic-periodontal diseases confirmed that coronal and cervical dentinal tubules may represent a viable pathway that allows spreading and maintaining of dual sites infection. Periodontal bacteria detected in root canal of concurrent endodonticperiodontal infections may originate from the local periodontal lesions.

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Lačević, A., Foschi, F., Pojskić, L., Pojskić, N., Bajrović, K., & Izard, J. (2015). Correlation of periodontal pathogens in concurrent endodontic-periodontal diseases. Oral Biology and Dentistry, 3(1), 5. https://doi.org/10.7243/2053-5775-3-5

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