Effect of ferrule height and glass fibre post length on fracture resistance and failure mode of endodontically treated teeth.
Aust Endod J
; 40(2): 81-6, 2014 Aug.
Article
en En
| MEDLINE
| ID: mdl-24118334
The purpose of this study was to evaluate the combined effect of ferrule height and post length on fracture resistance and failure mode of endodontically treated teeth restored with glass fibre posts, composite resin cores and crowns. Ninety human maxillary central incisors were endodontically treated and divided into three groups (n = 30) according to the ferrule heights: 4, 2 and 0 mm, respectively. Post spaces in each group were prepared at 2/3, 1/2 and 1/3 of the root length (n = 10). The specimens were received fibre posts, composite resin core build up and cast metal crowns. After thermocycling, compressive static load was applied at an angle of 135° to the crowns. Two-way analysis of variance showed significant differences in the failure load in the ferrule height groups, no significant differences in post length groups and no significant interaction between ferrule heights and post lengths. More restorable failure modes were observed.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fracturas de los Dientes
/
Técnica de Perno Muñón
/
Resinas Compuestas
/
Diente no Vital
/
Preparación Protodóncica del Diente
/
Materiales Dentales
/
Vidrio
Tipo de estudio:
Clinical_trials
Límite:
Humans
Idioma:
En
Revista:
Aust Endod J
Asunto de la revista:
ODONTOLOGIA
Año:
2014
Tipo del documento:
Article
País de afiliación:
Malasia
Pais de publicación:
Australia