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    The Effect of Maxillary Features and Occlusal Parameters on "sh" Production in Control and Glossectomy Subjects

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    Author
    Pedersen, Andrew David
    Advisor
    Stone, Maureen L.
    Date
    2017
    Type
    dissertation
    
    Metadata
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    Abstract
    This study examines the process by which the tongue articulates speech in glossectomy and control subjects using high resolution structural, and cine-MRI. Maxillary features and occlusal parameters are assessed in both groups to see if any effect on the amount of tongue volume displaced when contacting the anterior palate is noted. This volume amount is termed anteriority and measured against multiple variables. The independent variables include palate height, intercanine width, arch perimeter, orthodontic bicuspid extraction, overbite and overjet. The speech task of each subject is the sound "sh" extracted from a repeated word task. Results of the study showed statistically significant (p ≤ 0.05) differences in anteriority between glossectomy patients and controls, large versus small overbite, and an interaction between subject type and overbite. Data suggests having a larger overbite decreases the oral cavity size during "sh" sound and therefore increases tongue anteriority, especially in glossectomy subjects.
    Description
    University of Maryland, Baltimore. Biomedical Sciences-Dental School. M.S. 2017
    Keyword
    3D imaging
    anteriority
    Glossectomy
    Imaging, Three-Dimensional
    Orthodontics
    Overbite
    Speech
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/6720
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    Theses and Dissertations School of Dentistry
    Theses and Dissertations All Schools

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