Radiopacity of the modified Portland cement in comparison with MTA

Authors

  • Antônio César Leites
  • José Antônio Poli de Figueiredo
  • Flávio Fernando Demarco
  • Ana Paula Basso
  • Evandro Piva

Keywords:

Dental cements, MTA, Portland cement, radiopacity

Abstract

Purpose: This in vitro study used digital images to measure the radiopacity of the Portland cement (PC) containing or not radiopaque substances in relation to the radiopacity of the Mineral Trioxide Aggregate (MTA) cement. Methods: Three specimens were fabricated for each of the following five groups: 1) ProRoot MTA (Dentsply); 2) Portland cement – PC (Goiás); 3) PC + 2% uranyl acetate solution; 4) PC + 2% PTA solution; 5) PC + lead citrate solution. Specimens were stored in room temperature for 28 days and their radiopacity was measured by means of a direct digital radiography system (Sens-A-Ray), using the analytical functions line profile graph and histogram. Results: ProRoot MTA group showed the highest radiopacity; Portland cement radiopacity was approximately 60% of the MTA value. The tested solutions increased the radiopacity of Portland cement in the following rates: PTA=7%, uranyl acetate =12.5% and lead citrate =11%. Conclusion: The addition of radiopaque substances increased radiopacity of the original Portland cement, but it did not reach the level of ProRoot MTA radiopacity. Key words: Dental cements; MTA; Portland cement; radiopacity

Author Biographies

Antônio César Leites

Departamento de Morfologia, Universidade Federal de Pelotas, Pelotas, RS, Brasil

José Antônio Poli de Figueiredo

Programa de Pós-Graduação em Odontologia, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brasil

Flávio Fernando Demarco

Departamento de Odontologia Restauradora, Universidade Federal de Pelotas, Pelotas, RS, Brasil

Ana Paula Basso

Consultório particular, Rio de Janeiro, RJ, Brasil

Evandro Piva

Departamento de Odontologia Restauradora, Universidade Federal de Pelotas, Pelotas, RS, Brasil

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Published

2008-06-22

Issue

Vol. 23 No. 2 (2008)

Section

Original Article

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