Metal ion release from four orthodontic wires in commercial fluoride prophylactic agents :
Date
2011
DOI
Authors
Blackburn, David Paul
Version
OA Version
Citation
Abstract
Acidic fluoride prophylactic agents may contribute to an acceleration of the corrosion process of dental titanium and its alloys, thereby producing a detrimental effect on surface topography and composition of an archwire. The release of trace elemental metal ions from dental alloys may have adverse biological effects.
Objective: The objective of this in vitro study is to identify and quantify detectable levels of released trace elemental ions after exposure to two fluoride dentifrice solutions, and to observe changes in surface topographical characteristics.
Materials and Methods: Four straight rectangular as-received archwires (stainless steel, β-titanium, titanium-niobium, and cobalt-chromium-nickel) with dimensions of 0.016” x 0.022” were immersed in two fluoride agents [PreviDent (acidulated phosphate fluoride) and Phos-Flur (neutral sodium fluoride)] and incubated at room temperature for a period of 30 days. Elemental characterization and trace metal analysis were performed using energy dispersive x-ray spectrometry (EDS) and magnetic sector field inductively coupled plasma mass spectrometry (MSF-ICP-MS), respectfully. The surface corrosion of the archwires was determined macroscopically, with scanning electron microscopy (SEM).
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Description
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Thesis (MSD) --Boston University, Henry M. Goldman School of Dental Medicine, 2011 (Department of Orthodontics and Dentofacial Orthopedics).
Includes bibliography: leaves 51-58.
Thesis (MSD) --Boston University, Henry M. Goldman School of Dental Medicine, 2011 (Department of Orthodontics and Dentofacial Orthopedics).
Includes bibliography: leaves 51-58.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.