title: [Mechanical property analysis of polyethylene fiber reinforced polymethyl methacylate].
abstract: OBJECTIVE
  To investigate if the Ribbond polyethylene fiber has the effect of reinforcing polymethyl methacylate.
  
  
  METHODS
  28 specimens were fabricated and divided into 3 groups: group of chemical-cured PMMA, group of chemical-cured PMMA reinforced by stainless steel wire and group of chemical-cured PMMA reinforced by Ribbond polyethylene fiber. A three-point bending test was used to measure the flexural strength and flexural modulus of specimens. Then the data were analyzed with a one-way analysis of variance.
  
  
  RESULTS
  The flexural strength of chemical-cured PMMA group was (51.383 +/- 2.761) MPa, the flexural modulus was (1791.2 +/- 113.760) MPa; The flexural strength of stainless steel wire reinforced group was (58.725 +/- 1.218) MPa, the flexural modulus was (2092.76 +/- 120.28) MPa; The flexural strength of Ribbond polyethylene fiber reinforced group was (80.975 +/- 2.58) MPa, the flexural modulus was (2866.53 +/- 107.51) MPa. The one-way analysis of variance showed that the results were significant (P < 0.001). Newman-Keuls method showed that the differences among all groups were significant (P < 0.05).
  
  
  CONCLUSIONS
  The Ribbond polyethylene fiber can raise the flexural strength and flexural modulu of polymethyl methacylate.
authors.affiliation: Dept. of Prosthodontics, Stomatological School of Zhengzhou University, Zhengzhou 450052, China.
authors.forename: Zhi-gang
authors.initials: ZG
authors.lastname: Wang
authors.forename: San-xin
authors.initials: SX
authors.lastname: Mo
authors.forename: Ya-li
authors.initials: YL
authors.lastname: Ji
authors.forename: Qiu-xia
authors.initials: QX
authors.lastname: Zhang
authors.forename: Zhong-cheng
authors.initials: ZC
authors.lastname: Song
mesh_terms: D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry; D003799:Dental Stress Analysis; D008422:Materials Testing; D020959:Polyethylene / Q000737:chemistry*; D011095:Polyethylenes / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D013314:Stress, Mechanical; D013718:Tensile Strength
chemical_list: D003764:Dental Materials; D011095:Polyethylenes; C084063:RIBBOND; D020959:Polyethylene; D019904:Polymethyl Methacrylate