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Retrospective Database Study: Influence of Post-endodontic Restoration Placement on Survival of Root Canal-treated Teeth

NCT06441058 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 541

Last updated 2026-01-27

No results posted yet for this study

Summary

The aim of this study is to assess the influence (i.e. type and timing) of post-endodontic restorations on the survival of root canal-treated teeth and to determine the influence of patient-, tooth-, treatment-, and restoration-specific parameters on longevity.

Patients who received a root-canal treatment between 1998 and 1999 with subsequent placement of an indirect restoration (e.g. crown, partial crown) will be retrospectively analyzed. Patient-, tooth-, treatment-, and restoration-specific parameters will be obtained from digital and paper-based dental records.

Survival and success of the root-canal treatments will be assessed using Kaplan-Meier statistics. Mean annual failure rates (mAFR) and median survival time will be calculated (Kaplan-Meier statistics). Potential predictive factors will be tested using log-rank tests and multi-variate Cox-regression analysis.

Conditions

  • Root Canal Treatment

Interventions

OTHER

No patient treatment is associated with the study

No patient treatment is associated with the study.

Sponsors & Collaborators

  • University of Göttingen

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-06-01
Primary Completion
2025-06-01
Completion
2025-06-01

Countries

  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06441058 on ClinicalTrials.gov