Dental Restoration Failure
Conditions
Brief summary
The aim of this study is to determine and compare the longevity of single-tooth cast restorations made of precious metal vs. non-precious metal (e.g. partial crowns, crowns) and to determine the influence of patient-, tooth-, treatment-, and restoration-specific parameters on longevity. Patients who received single-tooth cast restorations made of precious metal or non-precious metal (e.g. partial crowns, crowns) between 1997 and 2022 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 restorations 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.
Detailed description
No patient treatment is associated with the study.
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 insured in the statutory health insurance. * Patients who received single-tooth cast restorations made of precious metal or non-precious metal (e.g. partial crowns, crowns) within the Department of Preventive Dentistry, Periodontology and Cariology between 1997 and 2022.
Exclusion criteria
* None.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success of restoration | 1997-2023 | Success is defined as the time-interval without a subsequent re-intervention of the restoration or extraction of the tooth. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Survival of restoration | 1997-2023 | Survival is defined as the time-interval without replacement of the restoration or extraction of the tooth. |
Countries
Germany
Outcome results
None listed