Influence of ferrule preparation with or without glass fiber post on fracture resistance of endodontically treated teeth
J. appl. oral sci
;
18(4): 360-363, July-Aug. 2010. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-557105
ABSTRACT
OBJECTIVE:
This study evaluated the effect of ferrule preparation (Fp) on the fracture resistance of endodontically treated teeth, restored with composite resin cores with or without glass fiber posts. MATERIAL ANDMETHODS:
Forty-four bovine teeth were sectioned 19 or 17 mm (2 mm ferrule) from the apex, endodontically treated and assigned to four groups (n = 11) Group 1 Fp and post; Group 2 Fp and without post; Group 3 without Fp and with post; Group 4 without Fp and without post. All specimens were restored with composite resin core and metal crown. Specimens were subjected to fracture resistance testing in a universal testing machine at a crosshead speed of 0.5 mm/min. The data were analyzed by two-way ANOVA and Tukey's tests (α=0.05).RESULTS:
The mean fracture resistance values were as follows Group 1 573.3 N; Group 2 552.5 N; Group 3 275.3 N; Group 4 258.6 N. Significantly higher fracture resistance was found for the groups with Fp (p<0.001).CONCLUSION:
There was no statistically significant interaction between the "Fp" and "post" factors (p = 0.954). The ferrule preparation increased the fracture resistance of endodontically treated teeth. However, the use of glass fiber post showed no significant influence on the fracture resistance.
Texto completo:
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Índice:
LILACS (Américas)
Asunto principal:
Fracturas de los Dientes
/
Técnica de Perno Muñón
/
Diseño de Prótesis Dental
/
Diente no Vital
/
Preparación Protodóncica del Diente
/
Vidrio
Límite:
Animales
Idioma:
Inglés
Revista:
J. appl. oral sci
Asunto de la revista:
Odontología
Año:
2010
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
State University of Campinas/BR
/
University of Passo Fundo/BR
/
University of São Paulo/BR
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