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Properties of indirect composites reinforced with monomer-impregnated glass fiber

Lookup NU author(s): Professor John McCabe

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Abstract

Sufficient flexural strength is required for long-term clinical use of fixed partial dentures made with fiber-reinforced composite. The flexural strengths of indirect composite materials reinforced with a monomer-preimpregnated glass fiber material were determined to evaluate the compatibility of the composites to glass fiber material. Four types (microhybrid, nanohybrid, microfilled, and minifilled) of indirect composites and a unidirectional long glass fiber material were selected for investigation. The composites were placed on a fiber plate and polymerized in accordance with the respective manufacturer's instructions. Rectangular bar fiber-composite specimens were machined and the flexural strength was calculated. The flexural strength of each indirect composite was also measured. The microfilled composite with the lowest filler content (70 wt%) exhibited the highest increase ratio using the fiber, although its strength without fiber reinforcement was the lowest (62.1 MPa). The fiber-microhybrid specimen demonstrated the highest mean strength (355.9 MPa), although the filler content of the microhybrid composite was comparatively low (73 wt%). The type of composite material should be considered for the selection of an optimal fiber-composite combination.

Publication metadata

Author(s): Tanoue N, Sawase T, Matsumura H, McCabe JF

Publication type: Article

Publication status: Published

Journal: Odontology

Year: 2012

Volume: 100

Issue: 2

Pages: 192-198

Print publication date: 01/07/2012

ISSN (print): 1618-1247

ISSN (electronic): 1618-1255

Publisher: Springer Japan KK

URL: http://dx.doi.org/10.1007/s10266-011-0039-9

DOI: 10.1007/s10266-011-0039-9

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