loading  Checking for direct PDF access through Ovid



Selection of resin core materials may affect the overall strength of the fiber posts.


To compare the overall flexural strength of five kinds of resin core materials combined with glass fiber posts.


Fifty viva glass fiber posts were randomly divided into five groups respectively binding to five different resin materials for repair: group A, MEDENTAL dual curing resin cement + glass fiber post; Group B, Tina dual curing resin cement + glass fiber post; group C, Bisco BisCem + glass fiber post; group D, 3M nano composite resin curing light P60 + glass fiber post; group E, PULPDENT dual curing resin cement + glass fiber post. The root canals were embedded with self-curing plastic, and fixed in the universal testing machine. The load in tooth length axis was added onto the core at a 135° angle with a loading speed of 1.0 mm/min, until the fracture. Then, the stress at fracture and the fracture mode were measured.


The flexural strength was (83.248±7.857) N in group, (89.230±4.326) N in group B, (95.188±5.147) N in group C, (76.646±6.463) N in group D, and (83.064±3.964) N in group E. Except groups A and E, there were significant differences between every two groups (P < 0.05). These findings indicate that Bisco BisCem resin cement binding to the fiber post can obtain a higher flexural strength.

Related Topics

    loading  Loading Related Articles