In Vitro Repair of Fractured Fiber-Reinforced Cusp-Replacing Composite Restorations | Zendy

Willem Fennis | Zendy; C.M. Kreulen | Zendy; Arzu TezvergilMutluay | Zendy; Lippo Lassila | Zendy; Pekka K. Vallittu | Zendy; N.H.J. Creugers | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

In Vitro Repair of Fractured Fiber-Reinforced Cusp-Replacing Composite Restorations

Author(s) -

Willem Fennis,

C.M. Kreulen,

Arzu TezvergilMutluay,

Lippo Lassila,

Pekka K. Vallittu,

N.H.J. Creugers

Publication year - 2011

Publication title -

international journal of dentistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.61

H-Index - 33

eISSN - 1687-8736

pISSN - 1687-8728

DOI - 10.1155/2011/165938

Subject(s) - algorithm , cusp (singularity) , fracture (geology) , materials science , fiber reinforced composite , composite number , composite material , computer science , geometry , mathematics

Objective . To assess fracture resistance and failure mode of repaired fiber-reinforced composite (FRC) cusp-replacing restorations. Methods . Sixteen extracted human premolars with fractured cusp-replacing woven (Group (A)) or unidirectional (Group (B)) FRC restorations from a previous loading experiment were repaired with resin composite and loaded to fracture. Results . Differences in fracture loads between groups were not statistically significant ( P = 0.34). Fracture loads of repaired specimens were significantly lower than those of original specimens ( P = 0.02 for Group (A) and P < 0.001 for Group (B)). Majority of specimens showed failure along the repaired surface. In Group (B) 89% of specimens showed intact tooth substrate after restoration fracture, while this was 28% in Group (A) ( P = 0.04). Conclusion . Fractured cusp-replacing FRC restorations that are repaired with resin composite show about half of fracture resistance of original restorations. Mode of failure with a base of unidirectional fibers is predominantly adhesive.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research