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Fatigue strengths of particulate filler composites reinforced with fibers

Authors
 Ji-Myung Bae  ;  Kyoung-Nam Kim  ;  Masayuki Hattori  ;  Koji Hasegawa  ;  Masao Yoshinari  ;  Eiji Kawada  ;  Yutaka Oda 
Citation
 DENTAL MATERIALS JOURNAL, Vol.23(2) : 166-174, 2004-06 
Journal Title
 DENTAL MATERIALS JOURNAL 
ISSN
 0287-4547 
Issue Date
2004-06
MeSH
Analysis of Variance ; Composite Resins / chemistry* ; Compressive Strength ; Dental Stress Analysis ; Elasticity ; Glass ; Materials Testing ; Nylons ; Particle Size ; Pliability ; Polyethylenes ; Stress, Mechanical
Abstract
The aim of this study was to evaluate the dynamic fatigue strengths at 10(5) cycles and the strains of particulate filler composite resins with and without reinforcing fibers. An UHMWPE (Ribbond), a polyaromatic polyamide fiber (Fibreflex), and three glass fibers (GlasSpan, FibreKor, Vectris Frame) were used to reinforce the particulate filler composite resins. The fatigue properties were measured in three-point bending mode using a servohydraulic universal testing machine at a frequency of 5 Hz, until failure occurred or 10(5) cycles had been completed. The fatigue strengths at 10(5) cycles were determined by the staircase method. The fractured aspects of specimens were evaluated by an optical and scanning electron microscope. The fatigue strengths of particulate filler composite resins were 49-57 MPa, and those of fiber-reinforced were 90-209 MPa. Unidirectional glass fibers showed higher reinforcing effects on the fatigue strengths of composite resins. The strain of UHMWPE-reinforced composite was largest.
Files in This Item:
T200404976.pdf Download
DOI
10.4012/dmj.23.166
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyoung Nam(김경남)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/178827
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