Clinical Comparison of Endodontically Treated Teeth Restored With Fiber Posts or Cast Metal Posts

Study Overview
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Brief Summary
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There are few randomized controlled trials comparing intraradicular posts used to restore endodontically treated teeth, especially considering cast posts and glass fiber posts. The investigators study will evaluate the clinical success rates of endodontically treated teeth restored with glass fiber posts or cast posts and metal ceramic crown. Individuals included in this study should present any tooth with endodontic treatment and need of intraradicular retention (post) on maxilla or mandible according to inclusion and exclusion criteria. Individuals will be randomly allocated into two groups: (1) endodontically treated teeth restored with fiber post and composite resin core and metal ceramic crown or (2) endodontically treated teeth restored with cast post and core and metal ceramic crown. A sample size calculation will be performed to establish the number of posts needed for comparison. All crowns and posts will be cemented with self-adhesive cement. Individuals will be examined by calibrated examiners, in years 1 to 3. The reason of failure will be categorized as root fracture, fracture of the post, post debonding, clinical and/or radiographical evidence of a gap between restoration and tooth or endodontic failure, tooth extraction, secondary caries, or marginal defects. The confidence level will be set in 95%.

Official Title
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Randomized Clinical Comparison of Endodontically Treated Teeth Restored With Fiber Posts or Cast Metal Posts

Conditions
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Post and Core Failure

Intervention / Treatment
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* Procedure: fiber post and resin core - self-adhesive cement
* Procedure: cast post and core
* Procedure: fiber post luted with conventional resin cement


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: adult patients with normal occlusion with at least one teeth endodontically treated needing restoration Exclusion Criteria: patients with malocclusion, orthodontic devices, temporomandibular disorders

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: cast post and core<br> | Procedure: cast post and core<br>* Ni-Cr alloy cast post and core luted with self-adhesive resin cement<br>|
| Experimental: fiber post - self-adhesive cement<br> | Procedure: fiber post and resin core - self-adhesive cement<br>* pre-fabricated glass fiber posts, cemented with self-adhesive resinous cement<br>|
| Experimental: fiber post - conventional cement<br> | Procedure: fiber post luted with conventional resin cement<br>* fiber post luted with conventional etch-and-rinse adhesive system and conventional resin cement, followed by core construction with composite resin<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Post and core survival |  | 72 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| patient satisfaction with the treatment |  | 18 months | 
| quality of crowns and restorations (FDI criteria) |  | 18 months | 
| endodontic success | assessed by periapical radiographs for observation of apical lesion presence or absence | 18 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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survival, debonding, endodontic treated teeth