Artículos de revistas
Effect of post length on the fatigue resistance of bovine teeth restored with bonded fiber posts: A pilot study
Fecha
2006-09-01Registro en:
International Journal of Prosthodontics. Hanover Park: Quintessence Publishing Co Inc., v. 19, n. 5, p. 504-506, 2006.
0893-2174
WOS:000240702100014
9234456003563666
Autor
Universidade Federal de Sergipe (UFS)
Univ Bologna
Universidade Estadual Paulista (Unesp)
Institución
Resumen
This study evaluated the influence of the cementation length of glass fiber-reinforced composite (FRC) on the fatigue resistance of bovine teeth restored with an adhesively cemented FRC. Thirty roots of single-rooted bovine teeth were allocated to 3 groups (n = 10), according to the ratio of crown length/root length (post cementation length): group 1 = 2/3, group 2 = 1/2, and group 3 = 1/1. The roots were prepared, the fiber posts (FRC Postec Plus) were cemented, and the specimens were submitted to 2 million mechanical cycles. After fatigue testing, a score was given based on the number of fatigue cycles until fracture, and data were submitted to statistical analysis. All specimens were resistant to fatigue. Taking into account the methodology and results of this study, the evaluated fiber posts can be cemented based on the ratio of crown/root at 1/1. Further clinical studies must be conducted to verify this ratio.