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dc.contributor.authorWeisner, Franken_US
dc.date.accessioned2019-05-16T13:35:24Z
dc.date.available2019-05-16T13:35:24Z
dc.date.issued1975
dc.date.submitted1975
dc.identifier.other(OCoLC)16142880
dc.identifier.otherb14342844
dc.identifier.urihttps://hdl.handle.net/2144/35646
dc.descriptionThesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1975. Orthodontics.en_US
dc.descriptionBibliography included.en_US
dc.description.abstractThe effects of extraoral traction on anterior bite opening were studied. Twenty-seven patients were divided into three groups and treated with either cervical traction, cervical traction with incisal spur, or anterior high pull gear. Significant changes in molar extrusion and mandibular plane contributed directly to overbite reduction. The CTG with Kuhn spur exerted maximum influence on these variables. Incisor intrusion, palatal plane and occlusal plane were not shown to be significantly effected by extraoral traction. However, the data was suggestive of vari ability between appliances. Perhaps if the sample size was increased, significant differences might become apparent. The greatest reduction of apical base discrepancy was observed with appliances having posterior force vectors . The anterior high pull gear showed little success in reducing point A.en_US
dc.language.isoen_US
dc.publisherBoston Universityen_US
dc.rightsThis work is being made available in OpenBU by permission of its author, and is available for research purposes only. All rights are reserved to the author.en_US
dc.subjectOrthodontic appliancesen_US
dc.subjectCephalometryen_US
dc.subjectRadiography, dentalen_US
dc.subjectMalocclusionen_US
dc.titleA roentgenographic cephalometric comparison of bite opening efficacy using cervical traction gear, cervical traction gear with meisal spur, and anterior high pull gearen_US
dc.typeThesis/Dissertationen_US
etd.degree.nameMaster of Science in Dentistryen_US
etd.degree.levelmastersen_US
etd.degree.disciplineOrthodonticsen_US
etd.degree.grantorBoston Universityen_US


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