Fluoride release of orthodontic cements before and after recharge with fluoride solution

Authors

  • Rogério Lacerda Santos UFRJ
  • Matheus Melo Pithon UFRJ
  • Julia Barbosa Pereira Leonardo
  • Edna Lúcia Couto Oberosler
  • Delmo Santiago Vaitsman UFRJ
  • Antônio Carlos de Oliveira Ruellas UFRJ

Keywords:

Glass ionomer cement, fluoride

Abstract

Purpose: This study aimed to compare the fluoride release from glass ionomer cements (GIC) used for orthodontic cementation, before and after fluoride recharge. Methods: Three GIC were evaluated: Meron (VOCO), Vidrion C (SS WHITE), and Ketac-Cem (3M ESPE). Fluoride release was measured by means of an ion selective electrode connected to a ion analyzer after 1 h and 1, 3, 7, 14, 21 and 28 days. To analyze the fluoride recharge and capacity of fluoride retention, the specimens were immersed in a 0.221 % sodium fluoride solution (1,000 ppm fluoride) for 5 min at days 28, 30, 31 and 32 for fluoride measurement after 24 h. Data were analyzed by ANOVA and Kruskal-Wallis test at the significance level of 0.05. Results: The pattern of fluoride release was similar for the tested GIC: all materials showed higher fluoride release at the first day and a fast decrease up to day 7. The exposure to the fluoride solution provided higher fluoride release from all materials, but the fluoride levels were not as high as in the first day. Conclusion: Overall the cements Meron and Vidrion C had larger fluoride release rates than Ketac-Cem, before and after fluoride recharge. The use of fluoride solution may increase the quantity of fluoride released from GIC. Key words: Glass ionomer cement; fluoride

Author Biographies

Rogério Lacerda Santos, UFRJ

Especialista em Ortodontia pela Universidade Federal de Alfenas-UNIFAL Mestre e Doutorando em Ortodontia pela Universidade Federal do Rio de Janeiro-UFRJ.

Matheus Melo Pithon, UFRJ

Especialista em Ortodontia pela Universidade Federal de Alfenas-UNIFAL Mestre e Doutorando em Ortodontia pela Universidade Federal do Rio de Janeiro-UFRJ.

Delmo Santiago Vaitsman, UFRJ

Mestre e Doutor em Ciências em Química pela Pontíficia Universidade Católica-Puc-RJ; professor do Departamento Química Analítica - LaDA - IQ/UFRJ.

Antônio Carlos de Oliveira Ruellas, UFRJ

Mestre e Doutor em Ortodontia pela Universidade Federal do Rio de Janeiro-UFRJ; professor convidado do Curso de Especializaçã o em Ortodontia da Universidade Federal de Alfenas-UNIFAL; professor assistente do Departamento de Odontopediatria e Ortodontia da Universidade Federal do Rio de Janeiro-UFRJ.

Downloads

Published

2008-11-10

Issue

Vol. 24 No. 1 (2009)

Section

Original Article

License

COPYRIGHT
The submission of originals to Odonto Ciência implies the transfer by the authors of the right for publication. Authors retain copyright and grant the journal right of first publication. If the authors wish to include the same data into another publication, they must cite Odonto Ciência as the site of original publication.

CREATIVE COMMONS LICENSE
As this journal is open access, the articles are allowed free use in scientific and educational applications, with citation of the source.
According to the type of Creative Commons License (CC-BY 4.0) adopted by Odonto Ciência, the user must respect the requirements below.

You are free to:
Share — copy and redistribute the material in any medium or format.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.

However, only under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests Odonto Ciência endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

For more details on the Creative Commons license, please follow the link in the footer of this website.