Characterization of aluminium radiopacity standards for restorative materials

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Two step-wedges constructed as radiopacity standards for restorative materials have been compared with respect to chemical composition and radiographic contrast. The radiographic density of a typical age-hardening aluminium alloy containing 4 per cent copper was found to exceed significantly that of aluminium of 99·5 per cent purity. consequently, the radiopacity of materials when expressed in terms of 'equivalent thickness of metal' is greater relative to pure aluminium than with this type of aluminium alloy by a factor of approximately 1·5. © 1987.
    Original languageEnglish
    Pages (from-to)175-177
    Number of pages2
    JournalJournal of Dentistry
    Volume15
    Issue number4
    Publication statusPublished - Aug 1987

    Keywords

    • Radiopacity
    • Restoratives
    • Standards

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