Radio-opacity of core materials for all-ceramic restorations

Access this Article

Search this Article

Author(s)

    • OKUDA Yuji
    • Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University
    • NODA Makoto
    • Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University
    • KONO Hiroshi
    • Department of General Dental Clinic, Graduate School of Medical and Dental Sciences, Kagoshima University
    • MIYAMOTO Motoharu
    • Department of Dental Radiology, Graduate School of Medical and Dental Sciences, Kagoshima University
    • SATO Hideo
    • Department of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Kagoshima University
    • BAN Seiji
    • Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University

Abstract

The aim of this study was to investigate and compare the radio-opacity of core materials for all-ceramic restorations, such as zirconia (NANOZR and Y-TZP) and alumina, against commercially pure titanium (cpTi) and aluminum. X-ray images were taken under general settings using an X-ray film. The X-ray film images were scanned using a digital scanner, and the darkness at the central area of each specimen image was quantitatively analyzed using an image analysis software. Amongst the materials investigated, alumina showed the most transparency against X-rays. Conversely, both types of zirconia showed the highest radio-opacity, whereby that of NANOZR was slightly lower than that of Y-TZP. This was because NANOZR contained 30 vol% of alumina and its density was also slightly lower than that of Y-TZP.

Journal

  • Dental Materials Journal

    Dental Materials Journal 29(1), 35-40, 2010-01-01

    The Japanese Society for Dental Materials and Devices

References:  21

Cited by:  3

Codes

  • NII Article ID (NAID)
    10025917505
  • NII NACSIS-CAT ID (NCID)
    AA10443149
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    02874547
  • Data Source
    CJP  CJPref  J-STAGE 
Page Top