NCT06441032

Retrospective Database Study: Survival of Cast Restorations - Restorations Made of Precious Metal vs. Non-precious Metal

Survival of Cast Restorations - Restorations Made of Precious Metal vs. Non-precious Metal

• Status: Enrolling By Invitation
• Phase: —
• Study type: Observational
• Enrollment: 4,000 (estimated)
• Sponsor: University of Göttingen · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

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.

Conditions

• Dental Restoration Failure

Interventions

Type	Name	Description
OTHER	No patient treatment is associated with the study	No patient treatment is associated with the study.

Timeline

• Start date: 2024-06-01
• Primary completion: 2025-06-01
• Completion: 2025-06-01
• First posted: 2024-06-04
• Last updated: 2024-06-07

Locations

1 site across 1 country: Germany