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Influence of Sodium Fluoride on TMA Wire

Objective: To evaluate corrosion topographically and surface composition of TMA wire when immersed in sodium fluoride solution.

Method: 20 mm wires (n=3) were immersed in diluted sodium fluoride solution for 90 minutes and then evaluated by SEM/EDS thus obeying the behavior of the main components of the alloy. P<0.05 for ANOVA/Tukey's test. 

Result: Mean values of the element Titanium (Ti) after immersion in sodium fluoride was significantly lower than the values found in the control group, as well as hear a significant increase in Tin (Sn) and Molybdenum (Mo) elements after immersion in fluoride than in the control group.

Conclusion: Sodium Fluoride acts  significantly on TMA reducing the amount of Ti and increasing the amount of Sn and Mo.

Division: IADR/LAR General Session
Meeting: 2012 IADR/LAR General Session (Iguaçu Falls, Brazil)
Location: Iguaçu Falls, Brazil
Year: 2012
Final Presentation ID: 2774
Abstract Category|Abstract Category(s): Dental Materials 9: Other Materials - Chemistry, Properties and Performance
Authors
  • Souza, Odilon  ( Universidade Paulista, Sao Paulo, N/A, Brazil )
  • Amorin, Milena  ( Universidade Paulista, Sao Paulo, N/A, Brazil )
  • Faltin Junior, Kurt  ( Universidade Paulista, Sao Paulo, N/A, Brazil )
  • Granja, Luiz  ( Associação Nacional de Estudos Odontológicos, São Paulo, N/A, Brazil )
  • Maeda, Fernando  ( Universidade de São Paulo, São Paulo, N/A, Brazil )
  • Teruel, Eduardo  ( Associação Nacional de Estudos Odontológicos, São Paulo, N/A, Brazil )
  • Ortolani, Cristina Lúcia Feijó  ( Universidade Paulista, Sao Paulo, N/A, Brazil )
    • SESSION INFORMATION
    Poster Session
    Other Materials - Chemistry, Properties, and Performance V
    06/22/2012