Does ferrule thickness influence resistance to fracture of endodontically treated teeth?

Background: Teeth with severe crown destruction and endodontically treated may or may not present a circular strip of dental tissue located in the cervical region called ferrule. Aims: The aims of this study were to evaluate ferrule thickness influence on endodontically treated teeth (ETT) resistanc...

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Bibliographic Details
Published in:Journal of conservative dentistry 2018-11, Vol.21 (6), p.613-617
Main Authors: Nascimento, Armiliana, Rodrigues de Oliveira, Leonardo, Moura, Agda, Santos Neto, Alexandrino, de Albuquerque, Monica, Suarez, Mabel, Torban, Paulo, Braz, Rodivan
Format: Article
Language:English
Subjects:
Adhesion
Adhesives
Alcohol
Analysis of variance
Cement
Composite materials
Compression
Data processing
Dental crowns
Dental materials
Dental restorative materials
Dentin
Enamel
Endodontics
Health aspects
Original
Polymerization
Polyvinyl chloride
Statistical analysis
Teeth
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Summary:Background: Teeth with severe crown destruction and endodontically treated may or may not present a circular strip of dental tissue located in the cervical region called ferrule. Aims: The aims of this study were to evaluate ferrule thickness influence on endodontically treated teeth (ETT) resistance to fracture. Materials and Methods: A total of 30 bovine incisor teeth were selected, endodontically treated and randomly distributed, according to the ferrule thickness: G1- no ferrule, G2 - 1 mm, and G3 - 2 mm. All the teeth were restored with prefabricated posts and composite resin. Resistance to fracture was established as the compression strength at 45° tilt at the lingual surface of the crown. Statistical Analysis Used: Data were analyzed using ANOVA and Tukey's test. Results: Resistance to fracture of G1 and G2 were significantly higher than that of G3 (P < 0.001). The pattern of fracture, common to all groups, occurred at the composite resin on the coronary portions. Conclusion: Ferrule thickness can influence the resistance to fracture of ETT.
ISSN:0972-0707
0974-5203
DOI:10.4103/JCD.JCD_204_16