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Endodontic/Implant Relationships

(PR100) Effect of Implants on the Periapical Health of Natural Adjacent Teeth: A Systematic Review and Meta-Analysis

Thursday, April 3, 2025
1:00 PM – 4:00 PM EST

    Co-Author(s)

  • Mike Sabeti, D.D.S., M.A.

    Director of Postgraduate Endodontics
    University of California, San Francisco
    San Francisco, California, United States

    • Presenter(s)

  • Heather Kim, D.D.S.

    Resident
    University of California, San Francisco
    San Francisco, California, United States

Objective: The aim of this systematic review was to evaluate the pooled estimate and relative risk of periapical lesions in natural teeth adjacent to implants.

Methods: MEDLINE (PubMed), Embase, Cochrane Library and gray literature were searched (inception-November 2023) to identify studies. Eligible studies were selected and data extracted. Studies were critically assessed for risk of bias and quality of evidence. Quantitative analysis was performed to determine the pooled estimate of periapical radiolucent lesions (PARL) in teeth adjacent to implants and to assess the relative risk of developing such lesions in these teeth compared to teeth adjacent to non-implants.

Results: A total of 6 studies were included. The pooled estimate of PARL in implant adjacent teeth was 2.55%. The risk ratio for PARL in a tooth adjacent to an implant in comparison to a tooth adjacent to a non-implant was 2.12. Analyses presented low certainty of evidence.

Conclusion: A natural tooth adjacent to an implant has 2.12 times higher probability of developing a PARL compared to a tooth adjacent to a non-implant. The overall quality of evidence was low.