Survival of Endodontically Treated and Restored Premolars: A Randomized Controlled Trial
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Siena
- Enrollment
- 360
- Primary Endpoint
- survival
Study Overview
Brief Summary
This in vivo study examined the contribution of remaining coronal dentin and placement of a prefabricated or customized fiber post to the six-year survival of endodontically treated premolars. A sample of 345 patients provided 6 groups of 60 premolars in need of endodontic treatment. Groups were classified according to the number of remaining coronal walls before abutment build-up. Within each group, teeth were allocated to three subgroups: A) no post-retention; B) LP; C) ES (N=20). All teeth were protected with a crown. Cox regression analysis was applied to assess whether the amount of residual coronal dentin and the type of endocanalar retention had a significant influence on failure risk of the restored teeth.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Factorial
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 76 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •endodontically treated premolars with symptom-free root canal filling and a minimum apical seal of 4 mm, in occlusal function with a natural tooth and in interproximal contact with two adjacent natural teeth.
Exclusion Criteria
- •periapical lesion on the X-ray.
Arms & Interventions
post restoration
Intervention: post placement (Procedure)
no post restoration
no post placement
Outcomes
Primary Outcomes
survival
Time Frame: 2 years
Secondary Outcomes
No secondary outcomes reported
Investigators
Prof. Marco Ferrari
Professor
University of Siena