Influence of intraradicular post and crown ferrule on the fracture strength of endodontically treated teeth

Author:

Pereira Jefferson Ricardo1,Valle Accácio Lins do2,Shiratori Fábio Kenji2,Ghizoni Janaina Salomon1,Melo Murilo Pereira de3

Affiliation:

1. University of Southern Santa Catarina, Brazil

2. University of São Paulo, Brazil

3. State University of Maringá, Brazil

Abstract

The aim of this study was to investigate the fracture strength of endodontically treated teeth restored with different posts and variable ferrule heights. Sixty freshly extracted human canines were treated endodontically and randomly assigned to 6 groups (n=10), being restored with custom-made cast post-and-core (CP0 and CP3 groups), prefabricated post and composite resin core (PF0 and PF3 groups), and composite resin (CR0 and CR3 groups). The CP0, PF0 and CR0 groups presented no ferrule and the CP3, PF3 and CR3 presented 3 mm of coronal structure. All teeth were restored with full metal crowns. The fracture strength was measured in a universal testing machine at 45o to the long axis of the tooth until failure. Data were analyzed statistically by 2-way ANOVA and Tukey's test (?=0.05). When the mean fracture strength values were compared (CP0 group - 820.20 N, CP3 group - 1179.12 N; PF0 group - 561.05 N; PF3 group - 906.79 N; CR0 group - 297.84 N; and CR3 group - 1135.15 N) there was statistically significant among the groups (p<0.05), except for the three groups with 3 mm of coronal remaining, which were similar to each other. The results of this study showed that the ferrule in crowns promoted significantly higher fracture strength in the endodontically treated teeth.

Publisher

FapUNIFESP (SciELO)

Subject

General Dentistry

Reference20 articles.

1. The endodontically treated tooth: restorative concepts and techniques;Trabert KC;Dent Clin North Am,1984

2. Fracture resistance of weakened roots restored with composite resin and glass fiber post;Zogheib LV;Braz Dent J,2008

3. Ferrule design and fracture resistance of endodontically treated teeth;Sorensen JA;J Prosthet Dent,1990

4. Factors determining post selection: a literature review;Fernandes AS;J Prosthet Dent,2003

5. Fracture resistance of endodontically treated teeth with different heights of crown ferrule restored with prefabricated carbon fiber post and composite resin core by intermittent loading;Oliveira JA;Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2008

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