An observational study in Dental Restoration Failure, sponsored by University of Göttingen. Enrolling by invitation at 1 site in Germany. Per ClinicalTrials.gov, last updated 2024-06-07.
Sponsored by University of Göttingen · Observational
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.
No patient treatment is associated with the study.
University of Göttingen is the lead sponsor of 37 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients insured in the statutory health insurance 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.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Single-tooth cast restorations made of precious metal.
Other: No patient treatment is associated with the study
Single-tooth cast restorations made of non-precious metal
Other: No patient treatment is associated with the study
No patient treatment is associated with the study.
Success of restoration
Success is defined as the time-interval without a subsequent re-intervention of the restoration or extraction of the tooth.
Time frame: 1997-2023
Survival of restoration
Survival is defined as the time-interval without replacement of the restoration or extraction of the tooth.
Time frame: 1997-2023
Plan to share: No
No publications or documents are linked to this record.
Started Jun 2024 (actual). Primary completion is estimated for Jun 2025, 12 months after the start.
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Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
No contact was published for this record. The registry link below has the sponsor’s details.
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University of Göttingen