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Characterization and analyses of acid‐extractable and leached trace elements in dental cements
Author(s) -
Camilleri J.,
Kralj P.,
Veber M.,
Sinagra E.
Publication year - 2012
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/j.1365-2591.2012.02027.x
Subject(s) - portland cement , cement , mineral trioxide aggregate , arsenic , nuclear chemistry , dental cement , leaching (pedology) , materials science , calcium silicate , chemistry , mineralogy , metallurgy , dentistry , geology , composite material , soil water , medicine , adhesive , layer (electronics) , soil science
Camilleri J, Kralj P, Veber M, Sinagra E. Characterization and analyses of acid‐extractable and leached trace elements in dental cements. International Endodontic Journal , 45 , 737–743, 2012. Abstract Aims Determination of the elemental constitution and investigation of the total and leachable arsenic, chromium and lead in Portland cement, pure tricalcium silicate, Biodentine, Bioaggregate and mineral trioxide aggregate (MTA) Angelus. Methodology The chemical composition of Portland cement, MTA Angelus, tricalcium silicate cement, Biodentine and Bioaggregate was determined using X‐ray fluorescence (XRF). Measurements of arsenic, lead and chromium were taken with inductively coupled plasma‐mass spectrometry (ICP‐MS), following acid digestion on the hydrated material and on leachates of cements soaked in Hank’s balanced salt solution (HBSS). Results All the cements investigated had a similar oxide composition with the main oxide being calcium and silicon oxide. Both the Portland cement and MTA Angelus had an additional aluminium oxide. The dental cements included a radiopacifying material. All the materials tested had higher acid‐extractable arsenic content than the level set by ISO 9917‐1 (2007) and an acceptable level of lead. Regardless these high levels of trace elements present in the materials, the leaching in HBSS was minimal for all the dental material tested in contrast to the high levels displayed by Portland cement. Conclusions Dental materials based on tricalcium silicate cement and MTA Angelus release minimal quantities of trace elements when in contact with simulated body fluids. The results of acid extraction could be affected by nonspecific matrix effects by the cement.