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

University of Göttingen

Status

Invitation-only

Conditions

Dental Restoration Failure

Treatments

Other: No patient treatment is associated with the study

Study type

Observational

Funder types

Other

Identifiers

NCT06441032

21/11/22 (Other Identifier)

Survival-Cast-Restorations

Details and patient eligibility

About

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.

Full description

No patient treatment is associated with the study.

Enrollment

4,000 estimated patients

Sex

All

Volunteers

No Healthy Volunteers

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