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The influence of mixing ratio on the working time, strength and wear of composites
Author(s) -
Gee A. J.,
Harkel H. C.,
Davidson C. L.
Publication year - 1989
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1989.tb00706.x
Subject(s) - composite material , mixing (physics) , materials science , mixing ratio , chemistry , physics , quantum mechanics
The influence of varying the paste‐to‐paste ratio of chemically initiated composites on the working time, diametral tensile strength and in vitro ‘occlusal’ wear was investigated. If the mixing ratio was varied, the working time was not equally affected for the various brands. This is explained by different relative inhibitor concentrations in the pastes. Within reasonable deviations from the 1:1 ratio, no significant influence on the diametral tensile strength occurred. Wear properties as determined by a simulated occlusal wear test on three posterior composites, was more sensitive to the mixing ratio.