Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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Year : 2021  |  Volume : 25  |  Issue : 1  |  Page : 17-21

Putative periodontal pathogens in persisting periodontal pockets of endodontic origin

1 Faculty, Department of Periodontics, SRM Dental College and Hospital, Ramapuram, Tamil Nadu, India
2 Ex-postgraduate Student, Chennai, Tamil Nadu, India

Correspondence Address:
P SG Prakash
Department of Periodontics, SRM Dental College and Hospital, Ramapuram, Chennai - 600 089, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jisp.jisp_397_20

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Background: The microbial profile of endodontically treated teeth, presenting with a persisting deep periodontal pocket, secondary to a primary endodontic lesion, draining through the gingival crevice, has received very less attention. This observational study was done to evaluate if these sites with persisting pockets of endodontic origin persist because they have acquired bacteria which are considered as putative periodontal pathogens. Materials and Methods: Subgingival plaque samples were collected from fifty patients diagnosed with a primary endodontic and a secondary periodontal lesion that persisted even after completion of the root canal treatment. Clinical parameters such as probing pocket depth, clinical attachment level, plaque index, furcation, and tooth mobility were recorded. Real-time polymerase chain reaction was used to determine the possible association between six bacteria, which are frequently associated with periodontal and endodontic lesions. Results: The mean cycle threshold value for Treponema denticola (Td) was found to be 33.74, and for Enterococcus faecalis (Ef), it was 34.39. With regard to clinical attachment loss, Td (P < 0.04) and Parvimonas micra (P < 0.05) had a significant correlation. Conclusion: Ef (92%) and Td (86%) were found to be most prevalent. Porphyromonas gingivalis and Tannerella forsythia were in minimal to nonexistent levels.

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