Using cell cultures of human gingiva, the composites Nuva Fil, Vytol, and Estic microfil were studied in terms of tissue tolerance. While the cytotoxicity for nonpolymerized and polymerized Nuva Fil and Vytol was extremely low, multinuclear fibroblasts were observed with Estic microfil.
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J Dent
August 1991
Department of Operative Dentistry, School of Dentistry, University of North Carolina, Chapel Hill 27599-7450.
Four u.v.-polymerized composites (Estilux, Nuva-Fil, Nuva-Fil P.
View Article and Find Full Text PDFCompressive stress relaxation measurements were performed on specimens of selected dental restorative composites. The relaxation modulus showed a linear dependence on the logarithm of time. The values obtained indicated that stress was dissipated more rapidly in dental composites than in enamel, but less rapidly than in human dentin.
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