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OVERBITE CORRECTION WITH FULLY CUSTOMIZED LINGUAL APPLIANCES
By
Scott Morita
____________________________________________________
A Thesis Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF SCIENCE
(CRANIOFACIAL BIOLOGY)
May 2013
Copyright 2013 Scott Morita
Object Description
| Title | Overbite correction with fully customized lingual appliances |
| Author | Morita, Scott L. |
| Author email | slmorita@usc.edu;slmorita@gmail.com |
| Degree | Master of Science |
| Document type | Thesis |
| Degree program | Cranio-Facial Biology |
| School | School of Dentistry |
| Date defended/completed | 2013-03-07 |
| Date submitted | 2013-04-09 |
| Date approved | 2013-04-09 |
| Restricted until | 2013-04-09 |
| Date published | 2013-04-09 |
| Advisor (committee chair) | Sameshima, Glenn T. |
| Advisor (committee member) |
Paine, Michael L. Grauer, Dan |
| Abstract | BACKGROUND: Overbite is the vertical relation of the upper to lower incisors. Normal overbite is considered normal within 1-3 mm, and excessive over 4 mm. ❧ OBJECTIVE: Goal of this study is to determine the mechanism of overbite correction with customized appliances. ❧ MATERIALS AND METHODS: Cephalometric radiographs for 39 consecutive cases with >4 mm. of overbite were digitized and traced in Dolphin Imaging Software. In order to assess changes, tracings were superimposed by the Bjork structural method. All cases were from a single orthodontic office in Germany and treated with Incognito lingual system. Sample was divided into growing and non-growing subgroups according to chronological age. Descriptive statistics and comparison between subgroups are presented. ❧ RESULTS: Treatment and growth changes in growing patients included: 1) molar extrusion 2) anterior incisor intrusion 3) anterior incisor flaring. Treatment and aging changes in growing patients included: 1) minimal molar extrusion 2) anterior incisor intrusion 3) greater anterior incisor flaring 4) mandibular autorotation. The difference between groups was the increase in facial heights. ❧ CONCLUSIONS: Growing and non-growing differed (as expected) in the increase of facial heights. Incisor inclination depended on the desired inclination designed into the custom lingual appliance as opposed to increased inclination (flared) incisors often reported in other studies. Overbite correction was a combination of molar extrusion, incisor intrusion, incisor flaring, and mandibular autorotation. Future research is needed to define the target overbite for specific patients in order to allow for optimum function. |
| Keyword | overbite; lingual; orthodontics; customized appliances; deepbite; braces |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Contributing entity | University of Southern California |
| Rights | Morita, Scott L. |
| Physical access | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@dots.usc.edu |
| Filename | etd-MoritaScot-1532.pdf |
| Archival file | uscthesesreloadpub_Volume7/etd-MoritaScot-1532-2.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@dots.usc.edu |
| Full text | OVERBITE CORRECTION WITH FULLY CUSTOMIZED LINGUAL APPLIANCES By Scott Morita ____________________________________________________ A Thesis Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (CRANIOFACIAL BIOLOGY) May 2013 Copyright 2013 Scott Morita |
