Effects of different resin core materials on the overall flexural strength of fiber posts

doi:10.3969/j.issn.2095-4344.2014.21.005

Abstract

Abstract:

BACKGROUND: Selection of resin core materials may affect the overall strength of the fiber posts.
OBJECTIVE: To compare the overall flexural strength of five kinds of resin core materials combined with glass fiber posts.
METHODS: 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.
RESULTS AND CONCLUSION: 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.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

全文链接：

Key words: biocompatible materials, resin cements, composite resins, glass

CLC Number:

R318

Gao Shi-jun, Li Yi, Sun Shi-jie, Tan Jing, Li Nan. Effects of different resin core materials on the overall flexural strength of fiber posts[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(21): 3304-3309.

Figures/Tables 1

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