Effects of topical fluoride prophylactic agents on the mechanical properties of orthodontic nickel-titanium closed coil springs

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Effects of topical fluoride prophylactic agents on the mechanical properties of orthodontic nickel-titanium closed coil springs

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/15992

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dc.contributor.advisor Walker, Mary P. en
dc.contributor.author McGivern, Genavieve Lynn
dc.date.accessioned 2012-11-06T20:48:19Z
dc.date.available 2013-11-06T12:15:06Z
dc.date.issued 2012-11-06
dc.date.submitted 2012 Fall en
dc.identifier.uri http://hdl.handle.net/10355/15992
dc.description Title from PDF of title page, viewed on November 6, 2012 en
dc.description Thesis advisor: Mary P. Walker en
dc.description Vita en
dc.description Includes bibliograohic references (p. 44-47) en
dc.description Thesis (M.S.)--School of Dentistry. University of Missouri--Kansas City, 2012 en
dc.description.abstract This study evaluated topical fluoride effects on mechanical properties of nickel-titanium orthodontic closed coil springs. Unloading force and rigidity were measured at 1, 4, 8, and 12 weeks, after springs were exposed to phosphate buffered saline (PBS), PBS combined with acidulated fluoride (PBS+APF) or sodium fluoride (PBS+NaF) with or without spring static loading. Scanning electron microscopy was used to characterize spring topography after 12 weeks. Based on an analysis of variance (α=.05), there was a significant effect of experimental condition, static load, and time. Across conditions and time, static load produced a significant decrease in properties. With topical fluoride treatments, there was a significant property decrease due to PBS+APF with loaded and non-loaded springs but only after 12 weeks. Corrosive topographical changes were observed with all conditions, particularly PBS+APF-loaded springs. Results suggest topical fluoride use with Ni-Ti springs may contribute to prolonged treatment duration due to decreased unloading properties. en_US
dc.description.tableofcontents Introduction -- Materials and methods -- Results -- Discussion -- Conclusion en
dc.format.extent ix, 49 pages en
dc.language.iso en_US en_US
dc.publisher University of Missouri--Kansas City en
dc.subject.lcsh Orthodontic appliances en
dc.subject.lcsh Fluorides e
dc.subject.mesh Orthodontic Appliances en
dc.subject.mesh Fluorides, Topical -- adverse effects en
dc.subject.other Thesis -- University of Missouri--Kansas City -- Dentistry en
dc.title Effects of topical fluoride prophylactic agents on the mechanical properties of orthodontic nickel-titanium closed coil springs en_US
dc.type Thesis en_US
thesis.degree.discipline Oral Biology en
thesis.degree.grantor University of Missouri--Kansas City en
thesis.degree.name M.S. en
thesis.degree.level Masters en


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