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Year : 2018  |  Volume : 18  |  Issue : 3  |  Page : 257-262

Flexural strength of hydrogen plasma-treated polypropylene fiber-reinforced polymethyl methacrylate denture base material

1 Department of Prosthetic Dental Sciences, College of Dentistry, Al Jouf University, Sakakah, Saudi Arabia
2 Department of Prosthodontics, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India
3 Department of Materials and Metallurgical Engineering, National Institute of Technology, Surathkal, Karnataka, India

Correspondence Address:
Dr. Merin Mathew
Department of Prosthetic Dental Sciences, College of Dentistry, Al Jouf University, Sakakah
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jips.jips_295_17

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Objectives: The present study aimed to evaluate flexural strength of hydrogen plasma-treated polypropylene fibers-reinforced polymethyl methacrylate (PMMA) polymer composite. Materials and Methods: One control group with no fiber reinforcement and 9 polymer composite test groups with varying fiber weight percentage (2.5, 5, and 10 Wt%) and aspect ratio (3/220, 6/220, and 12 mm/220 μm) were prepared. Flexural strength was measured using Instron. Results: All hydrogen plasma-treated polypropylene fiber-reinforced test groups obtained significantly higher flexural strength characteristics. Among the test groups, 6 mm long fibers reinforced in 10 Wt% showed superior flexural strength. Conclusion: Hydrogen plasma treatment on polypropylene fiber has a significant role in enhancing the adhesion between PMMA polymer matrix and the polypropylene fibers and thereby the flexural strength.

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