A development of nanocomposite structured transparent orthodontic wires with antimicrobial activity

2014 Fiscal Year Final Research Report

• Project/Area Number: 24593070
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthodontic/Pediatric dentistry
• Research Institution: Hokkaido University
• Principal Investigator: YAMAGATA Shuichi 北海道大学, 歯学研究科(研究院), 助教 (70292034)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ナノ材料 / 複合材料 / 矯正歯科治療 / マルチブラケット装置 / ワイヤー / モンモリロナイト / ポリメチルメタクリレート / ポリ乳酸

Outline of Final Research Achievements

We have been developing transparent composite materials with enough properties such as mechanical properties and so forth comparable with metal orthodontic wires to make the multibracket appliance which is used in orthodontic treatments more esthetically acceptable. We have taken particular note of montmorillonite (MMT), one of the representative layered silicates, as a reinforcing material. Owing to the support by JSPS KAKENHI [Grant-in-Aid for Scientific Research (C)] Grant Number 24593070, we successfully fabricated both poly(methyl methacrylate) (PMMA)/silanized organically modified MMT (s-OMMT) composites and poly(L-lactic acid) (PLLA)/s-OMMT composites with nanoscale reinforcement architecture. The remarkable results obtained through this study encourage us to make them applicable for transparent fiber reinforced plastic (FRP) orthodontic wires.

Free Research Field

歯科矯正学