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Mechanical properties of elastomeric impression materials
Author(s) -
SALEM N. S.,
COMBE E. C.,
WATTS D. C.
Publication year - 1988
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1988.tb00761.x
Subject(s) - tearing , elastomer , impression , materials science , composite material , ultimate tensile strength , elasticity (physics) , modulus , young's modulus , silicone elastomers , polymer science , computer science , world wide web
Summary Dental elastomeric impression materials of different consistencies, representing addition and condensation silicones, polysulphides and a polyether, were studied to determine their mechanical properties in terms of tearing energy, tensile properties and modulus determined at high strain rates. Whilst the polysulphides had the greatest resistance to tearing, they were more extensible, had lower moduli of elasticity and lower tensile strengths than the silicones. The polyether resembled the silicones in many respects.