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Related Experiment Videos

Endodontic pathogens in periodontal disease augmentation

L Jansson1, H Ehnevid, L Blomlöf

  • 1Department of Periodontology, Public Dental Service at Skanstull, Stockholm County Council, Sweden.

Journal of Clinical Periodontology
|August 1, 1995
PubMed
Summary

Endodontic infections in teeth with periodontitis can worsen marginal periodontal breakdown. This study shows endodontic pathogens stimulate epithelial downgrowth, potentially accelerating periodontitis progression.

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Area of Science:

  • Oral biology
  • Periodontology
  • Endodontics

Background:

  • Periapical pathology linked to endodontic infection correlates with periodontal breakdown.
  • Patency of dentinal tubules at the tooth cervix (lacking cementum post-therapy) is a suspected pathway.
  • Previous studies relied on indirect evidence of endodontic infection.

Purpose of the Study:

  • To investigate the direct impact of endodontic pathogens on marginal periodontal wound healing.
  • To assess healing on root surfaces without cementum but with healthy periodontal ligament.

Main Methods:

  • Experimental model using teeth with periodontitis and exposed dentinal tubules.
  • Comparison of wound healing parameters between teeth with and without experimentally induced endodontic infection.

Related Experiment Videos

  • Assessment of pocket epithelium and connective tissue coverage in experimental defects.

    • Main Results:

    • Infected teeth showed approximately 20% more pocket epithelium coverage.
    • Non-infected teeth exhibited approximately 10% more connective tissue coverage.
    • Significant differences in healing patterns were observed based on endodontic status.

    Conclusions:

    • Intra-canal endodontic infections promote epithelial downgrowth along exposed dentin.
    • This epithelial behavior may contribute to the progression of marginal periodontitis.
    • Endodontic infections could exacerbate periodontitis in susceptible patients.