Risk factors of post restorations: A prospective observational practice-based clinical study

Conditions: K02
Dental caries

Registration Number: DRKS00014958

Lead Sponsor: Klinik für Zahnerhaltung, Parodontologie und Präventive Zahnheilkunde, Universitätsklinikum der RWTH Aachen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Complete

Sex: All

Target Recruitment: 195

Inclusion Criteria

Patients with a need of restoration of at least one endodontically treated tooth will be invited and screened. Inclusion criteria will be as followed:
1. need of root canal treatment and post-supported restoration
2. symptom-free tooth with adequate root canal filling
3. incisisor, canines and premolars
4. one tooth per patient. In cases were more than one post restoration will be registered the first one will be included in the study
5. maximum of 50 patients per dentist
6. final restoration prepared with a ferrule design

Exclusion Criteria

none

Study & Design

Study Type: observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The observation period starts with the date when the post is inserted. Whenever the post will be ‘recemented’, renewed, or the tooth will be extracted the intervention will be considered as failed. When the post will still be in function at the last check-up visit and will found to be clinically acceptable, the intervention will be considered successful.<br><br>During the regular check-ups, the posts are monitored. No restriction in respect to the last check-up is given.

Secondary Outcome Measures

Name	Time	Method
The observation period starts with the date when the post is inserted. Whenever the post will be renewed, or the tooth will be extracted the intervention will be considered as failed. If a post can be recemented after loss of retention without renewal of the restoration the observation period will not be considered as censored or failed. When the post is still in function at the last check-up visit and is found to be clinically acceptable, the intervention will be considered as a ‘survival’.