Post and Core Failure
Conditions
Keywords
survival, debonding, endodontic treated teeth
Brief summary
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%.
Interventions
PROCEDUREfiber post and resin core - self-adhesive cement
pre-fabricated glass fiber posts, cemented with self-adhesive resinous cement
PROCEDUREcast post and core
Ni-Cr alloy cast post and core luted with self-adhesive resin cement
PROCEDUREfiber post luted with conventional resin cement
fiber post luted with conventional etch-and-rinse adhesive system and conventional resin cement, followed by core construction with composite resin
Sponsors
Universidade Federal de Santa Maria
Federal University of Pelotas
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Post and core survival | 72 months |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| patient satisfaction with the treatment | 18 months | — |
| quality of crowns and restorations (FDI criteria) | 18 months | — |
| endodontic success | 18 months | assessed by periapical radiographs for observation of apical lesion presence or absence |
Countries
Brazil
Contacts
Primary ContactTatiana Pereira-Cenci, PhD
Backup ContactMaximiliano S Cenci, PhD
Outcome results
None listed