Evaluation of commercial fluoride solutions on bovine enamel demineralization, using pH-cycling model

  • Maira de Souza Carvalho Universidade Federal do Amazonas
  • Juliana Maria Souza de Oliveira Universidade Federal do Amazonas
  • Juliana Vianna Pereira Universidade Federal do Amazonas
  • Maria Augusta Bessa Rebelo Universidade Federal do Amazonas
Keywords: Microhardness, fluoride, pH-cycling

Abstract

Purpose: The aim of this in vitro study was to evaluate the fluoride concentration in mouthrinses and their capacity to intervene with the caries process. Methods: The analysis of the fluoride concentration in the solutions was carried with ion specific electrode connected to an ion analyzer. Bovine incisors enamel blocks with previously known superficial microhardness were submitted to a pH cycling model and treated with fluoridated solutions, and later reanalyzed for microhardness and fluoride incorporation. Results: The fluoride concentration (ppm) found in the solutions SANiFill- Sanikids®, Colgate Plax Fresh Mint®, Oral B®, Sorriso Fresh® and Cepacol® (not fluoridated) were, respectively: 242.91±21.89; 248.42±3.55; 248.29±11.31; 257.61±17.57 and 35.37±10.64. The lowest loss of superficial microhardness was observed with the use Sorriso Fresh® (29.66%± 8.84), followed by Plax Fresh mint® (32.99%±14.09) and Oral B® (43.00%±18.34). Conclusion: The data suggests that fluoride solutions, in proper concentrations, are capable of intervening on the phenomena of demineralization and remineralization, promoting fluoride incorporation and, consequently, decreasing the loss of microhardness on dental enamel.

Author Biographies

Maira de Souza Carvalho, Universidade Federal do Amazonas
Estudante de grdaução da Faculdade de Odontologia da Universidade Federal do Amazonas
Juliana Maria Souza de Oliveira, Universidade Federal do Amazonas
Estudante de grdaução da Faculdade de Odontologia da Universidade Federal do Amazonas
Juliana Vianna Pereira, Universidade Federal do Amazonas
Professora Assistente da Faculdade de Odontologia da Universidade Federal do Amazonas, área Estomatologia
Maria Augusta Bessa Rebelo, Universidade Federal do Amazonas
Professor Associado da Faculdade de Odontologia da Universidade Federal do Amazonas. àrea de atuação: Cariologia; Epidemiologia.
Published
2010-06-11
Section
Original Article