title: Arsenic release provided by MTA and Portland cement.
abstract: 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.
authors.affiliation: Departament of Endodontics, Sagrado Coração University, Bauru, Brazil. mhungaro@travelnet.com.br
authors.forename: Marco Antonio Hungaro
authors.initials: MA
authors.lastname: Duarte
authors.forename: Ana Claudia Cardoso
authors.initials: AC
authors.lastname: De Oliveira Demarchi
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Yamashita
authors.forename: Milton Carlos
authors.initials: MC
authors.lastname: Kuga
authors.forename: Sylvio
authors.initials: S
authors.lastname: De Campos Fraga
mesh_terms: 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
chemical_list: 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