加速時効を行なった臼歯部用コンポジットレジンの色と光学的性質

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タイトル別名
  • Color and Optical Properties of Posterior Composites under Accelerated Aging

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The color and optical properties of three anterior and four posterior composites were determined from reflection spectrophotometric data and Kubelka's equations. Samples were aged for 300 hours at 43°C, 90% relative humidity, intermittent water spray, and continuous exposure to a 2500 watt xenon light. After aging the composites were generally darker, more chromatic, and more opaque. Values of S (absorption coefficient) and K (scattering coefficient) increased and values of XI (infinite optical thickness) decreased. The light-cured composites were less stable than the chemically cured ones.

収録刊行物

  • Dental Materials Journal

    Dental Materials Journal 4 (1), 62-67,122, 1985

    一般社団法人　日本歯科理工学会

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