FRP Esthetic Orthodontic Wire and Development of Matrix Strengthening with Poly(methyl methacrylate)/Montmorillonite Nanocomposite

Abstract

Orthodontic treatment using a multibracket appliance is the most popular and precise method for correcting misaligned dentition. We have been working to replace a conventional orthodontic metal wire with a fiber reinforced thermo-plastic (FRP) wire and have developed an esthetic transparent FRP wire containing biocompatible glass fibers and poly (methyl methacrylate) (PMMA). However, loss of mechanical properties carried by failure related with glass fibers has not yet been resolved. Meanwhile, we are working on developing a super-fiber (high-strength and high-modulus fibers) reinforced thermo-plastic wire; for this we will have to focus on improving the stiffness of PMMA without causing any deterioration in its flexibility. Transparent PMMA/layered silicate nanocomposites were fabricated by a solution intercalation method. Montmorillonite, organically modified with quaternary alkylammonium ions, was selected as the filler for reinforcement. The nanocomposites are transparent enough for their use as esthetic orthodontic wires. The flexural modulus of them was favorably improved. Those results encourage us to make them applicable for other dental use. To the best of our knowledge, there has been little or no research on polymer/layered silicate nanocomposites in the field of dentistry. A novelty and an application potentiality of our challenge are beneficial for evolving dentistry.

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Title
FRP Esthetic Orthodontic Wire and Development of Matrix Strengthening with Poly(methyl methacrylate)/Montmorillonite Nanocomposite
Book Title
Handbook of Polymernanocomposites. Processing, Performance and Application
Book DOI
10.1007/978-3-642-38649-7
Chapter DOI
10.1007/978-3-642-38649-7_19
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Volume
Editors
  • Jitendra K. Pandey Send Email (1)
  • Kummetha Raghunatha Reddy Send Email (2)
  • Amar Kumar Mohanty Send Email (3)
  • Manjusri Misra Send Email (4)
  • Editor Affiliation
  • 1 University of Petroleum and Energy Studies (UPES), Dehradun, India
  • 2 Department of Future Industry-Oriented Basic Science and Materials, Toyota Technological Institute, Nagoya, Japan
  • 3 Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada
  • 4 Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada
  • Authors
  • Shuichi Yamagata Send Email (5)
  • Junichiro Iida (5)
  • Fumio Watari (6)
  • Author Affiliation
  • 5 Department of Orthodontics, Graduate School of Dental Medicine, Hokkaido University, Kita 13 Nishi 7, Kita-ku, Sapporo 060-8586, Sapporo, Japan
  • 6 Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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