Download the full-sized PDF
Permanent link (DOI): https://doi.org/10.7939/R36Q5V
This file is in the following communities:
|Graduate Studies and Research, Faculty of|
This file is in the following collections:
|Theses and Dissertations|
Efficiency of Molar Distalization with the XBow Appliance Related to Second Molar Eruption Stage Open Access
- Other title
- Type of item
- Degree grantor
University of Alberta
- Author or creator
McGrath, Lisa C
- Supervisor and department
Dr. Flores-Mir (Dentistry - Orthodontics)
- Examining committee member and department
Dr. Paul Major (Dentistry)
Roger Toogood (Engineering)
Dr. Giseon Heo (Dentistry)
- Date accepted
- Graduation date
Master of Science
- Degree level
Title: Efficiency of Molar Distalization with the XBow Appliance Related to Second Molar Eruption Stage.
Objectives: To make a quantitative evaluation on lateral cephalograms of horizontal, vertical and angular changes in the position of the maxillary first molar when it is distalized with the XBow appliance. Specifically, these changes will be evaluated and compared in the presence and absence of erupted maxillary second molars to determine if there is an optimal time to treat.
Methods: Lateral cephalograms were retrospectively obtained at the start and after completion of all active treatment with the XBow appliance. In one group of patients distal movement of the maxillary first molars was performed before the eruption of maxillary second molars; in the other group of patients both first and second maxillary molars were simultaneously moved distally. All cephalograms were superimposed on palatal plane using the method of best-fit. Changes in the position of the maxillary first molar were measured as differences between specific landmarks before and after treatment.
Results: A MANOVA revealed that the eruption stage of the maxillary second molar did not have a significant effect on the change in position of the maxillary first molar after treatment with a XBow appliance.
Conclusion: When using the XBow appliance in the late-mixed to early-permanent stage of dentition, distalization of the maxillary first molar is likely no more effective before the eruption of the maxillary second molar.
- Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
- Citation for previous publication
- Date Uploaded
- Date Modified
- Audit Status
- Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 1455840
Last modified: 2015:10:12 15:47:08-06:00
Filename: McGrath_Lisa_Fall 2012.pdf
Original checksum: 333f727bfb9b675aa5dc3d4adcc63ab6
Well formed: true
File author: lmcgrath
Page count: 89
File language: en-US