Influence of topical acidulated phosphate fluoride on surface roughness of human enamel and different restorative materials

Authors

  • Ana Carolina Botta Faculdade de Odontologia de São José dos Campos - UNESP
  • Fernanda Brandão Mollica Faculdade de Odontologia de São José dos Campos - UNESP
  • Carolina Ferraz Ribeiro Faculdade de Odontologia de São José dos Campos - UNESP
  • Maria Amélia Máximo de Araújo Faculdade de Odontologia de São José dos Campos - UNESP
  • Rebeca Di Nicoló Faculdade de Odontologia de São José dos Campos - UNESP
  • Ivan Balducci Faculdade de Odontologia de São José dos Campos - UNESP

Keywords:

Surface roughness, composite resin, resin-modified glass ionomer cement, dental enamel, fluoride

Abstract

Purpose: The aim of this study was to assess the influence of topical acidulated phosphate fluoride on the surface roughness of both human enamel and different restorative materials. Methods: Resin-modified glass ionomer (Vitremer – V), microhybrid composite resin with fluoride (Tetric Ceram – T), and nanofiller composite resin without fluoride (Z350 – Z) were evaluated. Acidulated phosphate fluoride (APF, 1.23%) was applied to half of the specimens (groups VF, TF, ZF and EF). Ten intact human third molars were used to obtain enamel specimens (E). Six experimental groups (n=10) and two control groups (n=10) were formed. The mean surface roughness (Ra) of both the restorative materials and enamel, with and without fluoride, was evaluated with a profilometer. Data were analyzed with an ANOVA, Tukey’s test, Student’s t-test, and Dunn-Bonferroni test at the 5% significance level. Results: The mean values of surface roughness, in micrometers, were as follows: Z=0.60; TF=1.00; ZF=1.05; VF=1.18; T=2.10; V=2.70; E=16.99; and EF=21.19. Both E and EF presented significantly higher surface roughness than the other experimental groups. Conclusion: It was concluded that APF increased the surface roughness of enamel and decreased the surface roughness of both resin-modified glass-ionomer cement and microhybrid composite resin with fluoride. The surface roughness of the nanofiller composite resin was not modified by APF.

Author Biographies

Ana Carolina Botta, Faculdade de Odontologia de São José dos Campos - UNESP

Aluna de Doutorado em Dentística, Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

Fernanda Brandão Mollica, Faculdade de Odontologia de São José dos Campos - UNESP

Aluna de Doutorado em Dentística, Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

Carolina Ferraz Ribeiro, Faculdade de Odontologia de São José dos Campos - UNESP

Aluna de Doutorado em Dentística, Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

Maria Amélia Máximo de Araújo, Faculdade de Odontologia de São José dos Campos - UNESP

Professora Titular de Dentística, Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

Rebeca Di Nicoló, Faculdade de Odontologia de São José dos Campos - UNESP

Professora Assistente Doutora de Odontopediatria, Departamento de Odontologia Social e Clínica Infantil, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

Ivan Balducci, Faculdade de Odontologia de São José dos Campos - UNESP

Professor Assistente de Bioestatística, Departamento de Odontologia Social e Clínica Infantil, Faculdade de Odontologia de São José dos Campos, Universidade Estadual Paulista, São José dos Campos, SP, Brasil.

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Published

2010-01-22

Issue

Vol. 25 No. 1 (2010)

Section

Original Article

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