Comparative chemical study of MTA and Portland cements.
Portland cement has been analyzed and compared to mineral trioxide aggregate (MTA) because of their chemical similarity. The possibility of using this material as a less expensive alternative to MTA in dental practice should be considered. In view of this, the present study compared the components of a Portland cement (Votoran) to two commercial brands of MTA (Pro-Root and MTA-Angelus). Twelve specimens of each material were fabricated and examined by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) to obtain their percentage of chemical elements. The means of the chemical elements found in each material was compared by descriptive statistics. Bismuth was present only in MTA cements to provide radiopacity. In conclusion, the tested cements have similar components, which supports, as far as composition is concerned, the possible clinical use of Portland as an option to MTA.
Oliveira
Marília Gerhardt de
MG
Department of Surgery, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil. mogerhardt@pucrs.br
Xavier
Cristina Braga
CB
Demarco
Flávio Fernando
FF
Pinheiro
Antônio Luis Barbosa
AL
Costa
Aline Tempel
AT
Pozza
Daniel Humberto
DH
D017607:Aluminum Compounds / Q000737:chemistry* / Q000191:economics; D001729:Bismuth / Q000032:analysis / Q000737:chemistry / Q000191:economics; D017610:Calcium Compounds / Q000737:chemistry* / Q000191:economics; D003738:Dental Cements / Q000737:chemistry* / Q000191:economics; D004338:Drug Combinations; D008855:Microscopy, Electron, Scanning / Q000379:methods; D010087:Oxides / Q000737:chemistry* / Q000191:economics; D012387:Root Canal Filling Materials / Q000737:chemistry* / Q000191:economics; D017640:Silicates / Q000737:chemistry* / Q000191:economics; D046590:Spectroscopy, Electron Energy-Loss / Q000379:methods
D017607:Aluminum Compounds; D017610:Calcium Compounds; D003738:Dental Cements; D004338:Drug Combinations; C475480:MTA-Angelus; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; C033301:bismuth oxide; D001729:Bismuth