Arsenic release provided by MTA and Portland cement.
OBJECTIVE
The aim of the present study was to determine the release of arsenic from 2 gray Portland cements, a white Portland cement, and 2 MTAs (ProRoot and MTA-Angelus).


METHODS
The materials were manipulated and placed in plastic tubes, and the tubes were immersed in glass flasks containing water with grade reagent, pH 5.0. After 3 and 168 h, the water in which the material had been immersed was analyzed regarding the presence of arsenic by atomic absorption spectrophotometry with hydride generation.


RESULTS
The levels of arsenic released were similar for Portland cements and MTAs, and were well below those considered to be harmful.


CONCLUSIONS
MTA and Portland cements showed very low arsenic presence. The results suggest that MTAs and Portland cements are safe for use in clinical practice in terms of the presence of arsenic.
Duarte
Marco Antonio Hungaro
MA
Departament of Endodontics, Sagrado Coração University, Bauru, Brazil. mhungaro@travelnet.com.br
De Oliveira Demarchi
Ana Claudia Cardoso
AC
Yamashita
José Carlos
JC
Kuga
Milton Carlos
MC
De Campos Fraga
Sylvio
S
D017607:Aluminum Compounds / Q000737:chemistry; D000704:Analysis of Variance; D001151:Arsenic / Q000032:analysis*; D017610:Calcium Compounds / Q000737:chemistry; D003738:Dental Cements / Q000737:chemistry; D004338:Drug Combinations; D010087:Oxides / Q000737:chemistry; D012387:Root Canal Filling Materials / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry; D013054:Spectrophotometry, Atomic
D017607:Aluminum Compounds; D017610:Calcium Compounds; D003738:Dental Cements; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C472247:accelerated Portland cement; C086631:mineral trioxide aggregate; D001151:Arsenic