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Fracture toughness testing of dental biomaterials
Author(s) -
Koblitz F. F.,
Luna V. R.,
Glenn J. F.,
Devries K. L.,
Draughn R. A.
Publication year - 1979
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760190903
Subject(s) - materials science , fracture toughness , composite material , stress intensity factor , polymer , fabrication , dental composite , toughness , composite number , fracture mechanics , medicine , alternative medicine , pathology
Abstract The adaptation of a cylindrical geometry fracture toughness test specimen to testing of polymeric dental biomaterials is demonstrated. The specimen configuration facilitates the fabrication of small specimens and simplifies the experimental study of environmental effects on properties of dental biomaterials. The test method is used to measure critical stress intensity factor, K IC for poly (methyl methacrylate) (PMMA), particulate composite restorative materials, and dental polymers. Values obtained are in agreement with data reported for other specimen configurations.