Analysis of Arsenic in Gray and White Mineral Trioxide Aggregates by Using Atomic Absorption Spectrometry

Heavy Metal Analysis of Ortho MTA and ProRoot MTA

“…For this reason, we repeated the experimental procedures in their entirety (from the acid treatment to the measurement of the heavy metals using ICP-OES) 5 times. In other words, we made 5 samples of ProRoot MTA and another 5 samples for Ortho MTA for heavy metal analysis, whereas in previous studies the experiment was performed with only 3 replicates (20,37). Considering that the increasing sample size could reduce the risk of incorporating bias into the data, our results could be considered to give more solid evidence than in previous studies (12)(13)(14)(15)(16)(17).…”

Rat subcutaneous tissue response to calcium silicate containing different arsenic concentrations

“…Although a significant amount of arsenic is present in the different types of these materials 3 , 4 , its release is usually small 6 , 7 , 15 . The ISO 9917-1 standard 13 specifies the limit of 2 mg/kg for the total arsenic content in the materials and not for the release.…”

“…The only difference between them is the absence of bismuth oxide in PC, used as radiopacifier in MTA. It has been reported that Portland cement may contain some heavy metals in its composition, such as arsenic (As) 3 , 4 , 7 , 15 , 18 . The concentration of this metal varies according to the origin of the raw material used for the production of the Portland cement 4 .…”

Composition and Setting Reaction

“…This potentially leads to the inclusion of trace elements in the final product. Traces of arsenic, lead and chromium have been reported in both grey and white MTA [22,23,31,32,60,61,72]. Although the levels of acid-extractable trace elements are high, the amounts leached in solution are negligible.…”