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Comparison of resin push-out strength to root dentin of bovine- and human-teeth.
Artículo en Inglés | IMSEAR | ID: sea-139743
ABSTRACT

Aim:

To compare the push-out strength of bovine- and human-root dentin and, thus, evaluate the suitability of bovine-root dentin to substitute human-root dentin for bond strength testing. Materials and

Methods:

Ten single-rooted human-teeth and ten bovine incisors were prepared using a #3 bur of a fiber post system (12 mm long). The posts were duplicated with resin cement (Duolink). The root canals were treated with All Bond 2 adhesive system and the resin posts were cemented using Duolink. The specimens were cut perpendicular to their long axis, yielding disc-specimens with 1.5 mm thickness, which were submitted to a push-out test (1 mm/min). Ten bond strength values per group (n = 10) were used for statistical analysis (Student t test, a =.05).

Results:

Statistically significant differences were found for the bond strength values between bovine- (4.1 ± 1.3 MPa) and human-root dentin (8.6 ± 5.7 MPa) (P =.0001).

Conclusion:

The push-out strengths of bovine- and human-root dentin were statistically different.
Asunto(s)

Texto completo: Disponible Índice: IMSEAR (Asia Sudoriental) Asunto principal: Estándares de Referencia / Raíz del Diente / Humanos / Bovinos / Técnica de Perno Muñón / Recubrimiento Dental Adhesivo / Recubrimientos Dentinarios / Estadísticas no Paramétricas / Adaptación Marginal Dental / Preparación del Conducto Radicular Idioma: Inglés Año: 2009 Tipo del documento: Artículo

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Texto completo: Disponible Índice: IMSEAR (Asia Sudoriental) Asunto principal: Estándares de Referencia / Raíz del Diente / Humanos / Bovinos / Técnica de Perno Muñón / Recubrimiento Dental Adhesivo / Recubrimientos Dentinarios / Estadísticas no Paramétricas / Adaptación Marginal Dental / Preparación del Conducto Radicular Idioma: Inglés Año: 2009 Tipo del documento: Artículo