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Photographic assessment of colour changes in cold and heat‐cure resins
Author(s) -
WOZNIAK W. T.,
MULLER T. P.,
SILVERMAN R.,
MOSER J. B.
Publication year - 1981
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.1365-2842.1981.tb00507.x
Subject(s) - densitometer , optical density , materials science , base (topology) , colorimetry , staining , optics , dentistry , biomedical engineering , chemistry , mathematics , chromatography , medicine , physics , pathology , mathematical analysis
Summary A photographic method for assessing colour change was compared with an instrumental colorimetric procedure. Two denture base resins were stained in various solutions. Optical density changes of colour transparencies were measured with a transmission densitometer. Good agreement with the colorimetric technique was obtained after 15 days of staining over a range of F‐stops and bandpass filters.