Setting properties of alginate impression materials in dynamic viscoelasticity

N. Shigeto, Y. Yamada, H. Iwanaga, A. Subianto, T. Hamada

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The viscoelastic properties of three alginate impression materials were investigated. A landmark of working time was calculated using a raw phase-time curve. A landmark of setting time was calculated from an inflection point of the divided difference of the first order in the share modulus-time curve. As a result, the working time was common at the point of δ = 45° in variable frequencies. The mean value was obtained with less deviation. The setting times obtained were similar for variable frequencies. The mean values showed a distinct difference for each impression material.

Original languageEnglish
Pages (from-to)761-765
Number of pages5
JournalJournal of oral rehabilitation
Issue number10
Publication statusPublished - 1997 Oct

ASJC Scopus subject areas

  • Dentistry(all)

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