title: pH and calcium ion release of 2 root-end filling materials.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the pH and calcium ion release of 2 materials used for root-end fillings and perforation repair.
  
  
  METHODS
  ProRoot and MTA-Angelus were placed in plastic tubes and immersed in glass flasks containing deionized water. After 3, 24, 72, and 168 hours, the water in which each had been immersed was tested to determine the pH changes and released calcium.
  
  
  RESULTS
  The values for pH and calcium ion release were slightly higher for MTA-Angelus than ProRoot. The calcium release and pH of both materials were initially higher.
  
  
  CONCLUSIONS
  The results suggest that both materials release calcium and promote alkaline pH.
authors.affiliation: Department of Endodontics, Sagrado Coração University.
authors.forename: Marco Antonio Hungaro
authors.initials: MA
authors.lastname: Duarte
authors.forename: Ana Claudia Cardoso de Oliveira
authors.initials: AC
authors.lastname: Demarchi
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Yamashita
authors.forename: Milton Carlos
authors.initials: MC
authors.lastname: Kuga
authors.forename: Sylvio de Campos
authors.initials: Sde C
authors.lastname: Fraga
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry; D001729:Bismuth / Q000737:chemistry; D002118:Calcium / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry; D003287:Contrast Media; D003738:Dental Cements / Q000737:chemistry; D004338:Drug Combinations; D006863:Hydrogen-Ion Concentration; D007477:Ions; D010087:Oxides / Q000737:chemistry; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D003287:Contrast Media; D003738:Dental Cements; D004338:Drug Combinations; D007477:Ions; C475480:MTA-Angelus; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; C033301:bismuth oxide; D002118:Calcium; D001729:Bismuth