PMID- 30171364
OWN - NLM
STAT- MEDLINE
DCOM- 20181218
LR  - 20181218
IS  - 1573-4838 (Electronic)
IS  - 0957-4530 (Linking)
VI  - 29
IP  - 9
DP  - 2018 Aug 31
TI  - Thermo-Mechanical Properties of Glass Fiber Reinforced Shape Memory Polyurethane 
      for Orthodontic Application.
PG  - 148
LID - 10.1007/s10856-018-6157-y [doi]
AB  - OBJECTIVES: Glass fiber reinforced shape memory polyurethane (GFRSMPU) has great 
      potential to be an alternative kind of material for orthodontic archwires for 
      overcoming the disadvantages of metal wires in terms of esthetic and allergy and 
      deficiency of pure shape memory polyurethane (SMPU) wires in mechanical 
      properties. The objective of this study was to investigate the thermo-mechanical 
      properties and shape recovery functions of GFRSMPU and evaluate the feasibility 
      of using this composite for orthodontic archwires. MATERIAL AND METHODS: GFRSMPU 
      were made from short cut glass fibers and SMPU by mixing extrusion. Scanning 
      electron microscope (SEM) and differential scanning calorimetry (DSC) were 
      performed to investigate the distribution of glass fibers in the mixture and 
      glass transition temperature (T(g)). Then the thermo-mechanical properties, 
      including tensile modulus, flexural modulus and stress relaxation effects, were 
      measured. Furthermore, shape recovery functions of GFRSMPU characterized by the 
      shape recovery ratio and force were investigated through shape recovery tests, 
      typodont models and finite element analysis (FEA). RESULTS: SEM images indicated 
      that an excellent dispersity of glass fibers was obtained after double-extrusion. 
      DSC experiments showed T(g) was not enormously affected with the existence of 
      glass fibers, but the mechanical properties of GFRSMPU were greatly improved. 
      Shape recovery tests showed reduction of shape recovery ratio of the GFRSMPU 
      material with the addition of glass fibers, but dentition aligning time was 
      reduced by 50% in the simulation performed on identical typodont models with 
      GFRSMPU archwires filled with 30 wt.% glass fibers. The FEA results illustrated 
      that the reacting forces of GFRSMPU archwires with 30 wt.% glass fiber was 
      increased by 96.36% compared with pure SMPU archwires. CONCLUSIONS: The 
      mechanical properties of GFRSMPU can be considerably improved by adding glass 
      fibers, and the shape memory function would be well preserved too. Enhanced SMPU 
      owns a good application prospect in orthodontics for dentation aligning on the 
      preliminary stage, as well as other medical fields.
FAU - Liu, Yun-Feng
AU  - Liu YF
AUID- ORCID: 0000-0001-8487-0078
AD  - Key Laboratory of E&M, Ministry of Education & Zhejiang Province, Zhejiang 
      University of Technology, 310014, Hangzhou, China. liuyf76@126.com.
FAU - Wu, Jian-Lei
AU  - Wu JL
AD  - Key Laboratory of E&M, Ministry of Education & Zhejiang Province, Zhejiang 
      University of Technology, 310014, Hangzhou, China.
AD  - Mechanical & Electrical Engineering Institute, Ningbo Polytechnic, 315800, 
      Ningbo, China.
FAU - Song, Shan-Ling
AU  - Song SL
AD  - Key Laboratory of E&M, Ministry of Education & Zhejiang Province, Zhejiang 
      University of Technology, 310014, Hangzhou, China.
FAU - Xu, Li-Xin
AU  - Xu LX
AD  - College of Materials Science and Engineering, Zhejiang University of Technology, 
      310014, Hangzhou, China.
FAU - Chen, Jie
AU  - Chen J
AD  - Department of Mechanical Engineering, Purdue School of Engineering and 
      Technology, Indiana University-Purdue University Indianapolis, Indianapolis, 
      46202, USA.
FAU - Peng, Wei
AU  - Peng W
AD  - Key Laboratory of E&M, Ministry of Education & Zhejiang Province, Zhejiang 
      University of Technology, 310014, Hangzhou, China.
LA  - eng
GR  - 51375453/National Natural Science Foundation of China/
GR  - 51775506/National Natural Science Foundation of China/
GR  - LY18E050022/National Natural Science Foundation of Zhejiang Province/
PT  - Journal Article
DEP - 20180831
PL  - United States
TA  - J Mater Sci Mater Med
JT  - Journal of materials science. Materials in medicine
JID - 9013087
RN  - 0 (Biocompatible Materials)
RN  - 0 (Dental Materials)
RN  - 0 (Polyurethanes)
RN  - 0 (fiberglass)
SB  - IM
MH  - *Biocompatible Materials
MH  - Dental Materials/chemistry
MH  - *Glass
MH  - *Materials Testing
MH  - Pliability
MH  - Polyurethanes/*chemistry
MH  - Stress, Mechanical
MH  - Surface Properties
EDAT- 2018/09/02 06:00
MHDA- 2018/12/19 06:00
CRDT- 2018/09/02 06:00
PHST- 2018/02/01 00:00 [received]
PHST- 2018/08/22 00:00 [accepted]
PHST- 2018/09/02 06:00 [entrez]
PHST- 2018/09/02 06:00 [pubmed]
PHST- 2018/12/19 06:00 [medline]
AID - 10.1007/s10856-018-6157-y [pii]
AID - 10.1007/s10856-018-6157-y [doi]
PST - epublish
SO  - J Mater Sci Mater Med. 2018 Aug 31;29(9):148. doi: 10.1007/s10856-018-6157-y.