Effect of moisture on flexural strength of fiber-reinforced composites used as splinting materials

Authors

  • Rakesh Mutha
  • Nitin Dani

DOI:

https://doi.org/10.7213/aor.v8i2.23048

Keywords:

Composite Resin, Splinting, Polyethylene fibers, Glass fibers, Tooth stabilization, Flexural strength

Abstract

Objectives: Different fiber types are available for reinforcing composite restorations. Little information exists regarding flexural strength of various fiber used to reinforce direct composites. This in vitro study examined the flexural strength of polyethylene and glass fibers when used to reinforce composite and influence of moisture exposure on the same materials. Materials and methods: The two types of fiber were used to reinforce blocks of composite (RX Flow, Dental Life Sciences) prepared to test flexural properties and compared with the unreinforced controls. Mean flexural strengths values were determined in a 3-point bend test at a crosshead speed of 8 mm/min by use of a universal testing machine. Results: Significant increases in mean flexural strength were found for all fiber-reinforced groups in comparison to the unreinforced controls at both before and after moisture exposure. The polyethylene fiber gave the greatest reinforcing effect. After 1 month of storage in an artificial saliva substitute, a significant decline occurred in the mean flexural strength of all the groups tested. Conclusion: Within the limitations of this study, the choice of fiber type was shown to have a significant increase on the flexural properties of the fiber-reinforced composite. Polyethylene fibers increased the flexural strength of the composite the most.

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Published

2012-11-28

How to Cite

Mutha, R., & Dani, N. (2012). Effect of moisture on flexural strength of fiber-reinforced composites used as splinting materials. Archives of Oral Research, 8(2). https://doi.org/10.7213/aor.v8i2.23048

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Section

Articles