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%.