Z46.3
Conditions
Interventions
Group 1: The aim of the present retrospective, multi-center, practice-based cohort study is, firstly, to evaluate the longevity of different removable partial dentures retained by telescopic crowns an
dentist
on dentist-level
age, sex
on patient-level
age, sex, date of the first insertion of the telescopic crown, date of any (second) restorative (re-)intervention, date of the last visit, number of teeth/restorations (per patient) being included in
characteristics of the involved tooth (Fédération Dentaire Internationale [FDI] notation system), clinical manifestation and sequel of the caries if present (caries superficialis, caries profunda), mo
finishing line of the preparation (chamfer, shoulder, partial shoulder).
Sponsors
Universität Bern Klinik für Zahnerhaltung, Präventiv- und Kinderzahnmedizin
Eligibility
Sex/Gender
All
Age
0 Years to 99 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria will be as followed: Patient receiving removable partial dentures (RPD) retained by telescopic crowns (TRPD)
Exclusion criteria
Exclusion criteria: There will be no exclusion criteria in respect of 1. the number of telescopic crowns per patient 2. the number of telescopic crowns per dentist 3. the materials, brands, and techniques being used
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of risk factors, influencing the success of telescopic crowns The status of the telescopic crowns will be assessed by clinical (visual-tactile) and intraoral radiographic examination. The interval for the radiographic examination will be defined on an individual basis. Assessment of the telescopic crowns will be done in the same practice by the dentist who prepared the telescopic crowns when patients attended for routine care, recall or when a problem occurred. The observation period will start with the telescopic crowns being placed. When the telescopic crown and the removable partial dentures will still bein function at the last check-up visit and found to be clinically acceptable, the intervention is defined as success (no need of invasive reintervention). Whenever the telescopic crowns and/or the removable partial dentures will be replaced, repaired, recemented or scheduled for one of these treatments at the last check-up - for which an appointment was then made with the patient - the intervention will be considered as failed. Whenever the telescopic crown will receive an endodontic treatment during the observation period the intervention will not be considered as failed, but the observation period will then be censored. | — |
Countries
Germany
Contacts
Public ContactRichard Wierichs
Universität Bern Klinik für Zahnerhaltung, Präventiv- und Kinderzahnmedizin
Outcome results
None listed