Radio-opacity of core materials for all-ceramic restorations.

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_name

Dent Mater J

journal_title

Dental materials journal

authors

Okuda Y,Noda M,Kono H,Miyamoto M,Sato H,Ban S

doi

10.4012/dmj.2009-54

subject

Has Abstract

pub_date

2010-01-01 00:00:00

pages

35-40

issue

1

eissn

0287-4547

issn

1881-1361

pii

JST.JSTAGE/dmj/2009-54

journal_volume

29

pub_type

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