Relapse of orthodontically corrected deep bites in accordance with growth pattern

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dc.contributor.authorPollard, Derek
dc.contributor.examiningcommitteeWiltshire, William (Preventive Dental Science) Rody Jr., Wellington (Preventive Dental Science) Boorberg, Noriko (Restorative Dentistry)en_US
dc.contributor.supervisorAkyalcin, Sercan (Preventive Dental Science)en_US
dc.date.accessioned2011-09-15T17:10:53Z
dc.date.available2011-09-15T17:10:53Z
dc.date.issued2011-09-15
dc.degree.disciplinePreventive Dental Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractOBJECTIVES: (1) Compare the relapse of corrected deep bites in three groups of patients separated by facial type (2) Determine the associations of various parameters influencing deep bite relapse. METHODS: 60 patients treated at the University of Washington were included, all with initial overbites >50%. Patients were grouped according to initial Y-axis, MPA, and LFH values. Data was collected from casts and cephalometric radiographs at three time points: pre-treatment, post-treatment, and ten years post-retention. RESULTS: Dolicocephalic subjects showed the least amount of deep bite relapse (0.1 ± 1.1 mm), while brachycephalic (1.2 ± 0.9 mm) and mesocephalic (1.4 ± 1.3 mm) subjects experienced significant relapse (p < 0.05). Intergroup comparisons revealed that the brachycephalic group had significantly more post-retention change in overbite, N-ANS, interincisal angle, and L1-MP than the dolicocephalic group (p<0.05). CONCLUSIONS: Orthodontists should consider overcorrection of overbite in brachycephalic and mesocephalic patients presenting with overbites >50%.en_US
dc.description.noteOctober 2011en_US
dc.identifier.urihttp://hdl.handle.net/1993/4927
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectoverbiteen_US
dc.subjectrelapseen_US
dc.subjectfacial typeen_US
dc.subjectpost-retentionen_US
dc.titleRelapse of orthodontically corrected deep bites in accordance with growth patternen_US
dc.typemaster thesisen_US
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