Root Canal Treatment
Conditions
Brief 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.
Interventions
No patient treatment is associated with the study.
Sponsors
University of Göttingen
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Patients who received a root-canal treatment followed by the placement of an indirect post-endodontic restoration (e.g. partial crowns, crowns) within the Department of Preventive Dentistry, Periodontology and Cariology between 1998 and 1999.
Exclusion criteria
* None.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success of endodontic treatment | 1998-2023 | Success is defined as the time-interval without a subsequent endodontic re-intervention or extraction of the tooth. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Survival of the tooth | 1998-2023 | Survival of the tooth is defined as the time-interval without extraction of the tooth. |
Countries
Germany
Outcome results
None listed