Effect of refrigerant spray on orthodontic composite resin-bracket debond strength and associated adhesive remnant index

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Effect of refrigerant spray on orthodontic composite resin-bracket debond strength and associated adhesive remnant index

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/15982

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dc.contributor.advisor Iwasaki, Laura en
dc.contributor.advisor Iwasaki, Laura en
dc.contributor.author Gossett, Lauren Ashley
dc.date.accessioned 2012-11-05T20:22:42Z
dc.date.available 2012-11-05T20:22:42Z
dc.date.issued 2012-11-05
dc.date.submitted 2012 Summer en
dc.identifier.uri http://hdl.handle.net/10355/15982
dc.description Title from PDF of title page, viewed on November 5, 2012 en
dc.description Thesis advisors: Laura Iwasaki and Mary P. Walker en
dc.description Vita en
dc.description Includes bibliographic references (p. 59-66) en
dc.description Thesis (M.S.)--School of Dentistry. University of Missouri--Kansas City, 2012 en
dc.description.abstract This study evaluated effects of refrigerant spray and crosshead speed on orthodontic composite resin shear debond strength and Adhesive Remnant Index (ARI) after bond failure. Orthodontic brackets were bonded to forty paired extracted mandibular third molars. Pairs were divided into experimental and control groups, with and without refrigerant spray prior to debond, respectively. Each group was further divided into two subgroups based on crosshead speed of 1 or 10 mm/min. Bracket shear debond strength was tested with a universal testing machine and ARI scores assessed. Results showed no statistically significant difference for shear debond strength or ARI score as a function of refrigerant spray usage. Statistically significant differences were shown for shear debond strength and ARI score as a function of crosshead speed. As crosshead speed increased, shear debond strength and ARI score both increased. These results indicate that application of refrigerant spray prior to bracket debonding is not beneficial. en_US
dc.description.tableofcontents Introduction -- Materials and methods -- Results -- Discussion -- Conclusions -- -- Literature cited -- Appendix 1. IRB approval -- Appendix 2. Bracket temperature pilot data -- Appendix 3. Bracket debond time pilot data -- Appendix 4. Bracket composite layer temperature pilot data en
dc.format.extent x, 84 pages en
dc.language.iso en_US en_US
dc.publisher University of Missouri--Kansas City en
dc.subject.lcsh Dental cements en
dc.subject.lcsh Dental bonding en
dc.subject.mesh Dental Cements en
dc.subject.mesh Dental Bonding en
dc.subject.other Thesis -- University of Missouri--Kansas City -- Dentistry en
dc.title Effect of refrigerant spray on orthodontic composite resin-bracket debond strength and associated adhesive remnant index 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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