Uniform corrosive test for dental materials
ČlánekOtevřený přístuppeer-reviewedpublishedDatum publikování
2013
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
University of Pardubice
Abstrakt
The aim of our study was to unify testing of both ceramic and alloy dental
materials to one common extraction procedure based on hydrochloric acid for
both material groups and find suitable accompanying analytical method. Dental
materials typical for routine praxis (eleven dental ceramics and seven metal
alloys) were step-wise leached with 0.1 mol l–1 HCl at 37 °C two times for one
week and once for two weeks. After the immersion test, the ions released were
analysed using the inductively coupled plasma emission spectrometry (ICP-OES)
and inductively coupled plasma mass spectrometry (ICP-MS).
Detection limits for the ICP-MS method and the ICP-OES method were
hundreds to tenths of ng cm–2 and units to tens μg cm–2, respectively. Recoveries for the spiked sample were 94.8-105 % for ICP-OES method and 94.4-108 % for
ICP-MS method. The repeatability of the whole analytical procedure including the
leaching step, evaluated on the basis of five repetitive extractions of a randomly
selected sample was found up to 15 %. In the case of four dental ceramics,
significant visual changes of their surface connected with a loss of mass (about
5 %) were observed. The loss of mass was evaluated and compared to
international standards and literary data. Multivariate statistical methods proved
similarities and differences between materials relating to chemical composition.
A uniform corrosion test for ceramic and alloy dental materials was designed.
Extracts (0.1 mol l–1 HCl, 37 °C, 168 hours) of ceramics and metal alloys were
analysed (ICP-OES).
Rozsah stran
p. 141–153
ISSN
1211-5541
Trvalý odkaz na tento záznam
Projekt
Zdrojový dokument
Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 19/2013
Vydavatelská verze
Přístup k e-verzi
open access
Název akce
ISBN
978-80-7395-748-3