Effect of Glass Fiber Post Diameter on Fracture Resistance of Endodontically Treated Teeth
Pesqui. bras. odontopediatria clín. integr
;
20: e5413, 2020. tab, graf
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-1101302
ABSTRACT
Abstract Objective:
To determine the fracture resistance of endodontically treated teeth restored with three different diameters of glass fiber posts and metal-ceramic crowns. Material andMethods:
Thirty human maxillary canines were selected and subjected to root canal therapy. The teeth were randomly divided into three groups of glass fiber posts with 1.4 mm diameter (Group I), 1.6 mm diameter (Group II), and 2.0 mm diameter (Group III). The teeth were restored with metal-ceramic crowns and subjected to the compressive load applied at 45º angle to the longitudinal axis until fracture. The mode of failure was determined. Data were analyzed using ANOVA, followed by Tukey's post hoc multiple comparisons test (p<0.05).Results:
The mean fracture resistance of groups I, II and III was 574 ± 91.2 N, 617 ± 85.21 N and 467 ± 99.43 N, respectively. No significant difference was noted between groups I and II, while the fracture resistance was significantly different between groups I and III (p<0.05) and groups II and III (p<0.05). No case of post fracture alone occurred in any group.Conclusion:
The diameter of glass fiber posts can affect the fracture resistance of teeth. Based on the results, increasing the diameter of the post up to 1.6 mm may increase the fracture resistance of root, although excessive diameters are not recommended.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Tratamento do Canal Radicular
/
Dente
/
Dente não Vital
/
Resistência à Flexão
Limite:
Humanos
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Pesqui. bras. odontopediatria clín. integr
Assunto da revista:
Odontologia
Ano de publicação:
2020
Tipo de documento:
Artigo
País de afiliação:
Irã
/
Estados Unidos
Instituição/País de afiliação:
Tehran University of Medical Sciences/IR
/
University of the Pacific/US
Similares
MEDLINE
...
LILACS
LIS