Development of a Three Dimensional Maxillary Superimposition Plane Using Cone Beam Computed Tomography

• Author / Creator

  Lemieux, Genevieve

• Introduction: Cone beam computed tomography (CBCT) is a new diagnostic and treatment planning tool in orthodontics. The purpose of this thesis is to determine precise landmarks that can be used for cephalometric superimposition of the maxilla and the mandible. A maxillary plane will then be determined for superimposition of CBCT and tested in a clinical context.
  Methods: The CBCTs of ten skulls were used to test the precision and accuracy of the landmarks. Next, CBCTs and plaster models of thirty patients were used to test and validate the proposed 3D superimposition technique of the maxilla.
  Results: Nasion, incisive foramen, bilateral infraorbital, mental foramina and anterior nasal spine were all precise and accurate landmarks to use in the formation of a maxillary superimposition plane. Comparison of the proposed superimposition technique with a gold standard demonstrated excellent agreement.
  Conclusion: The proposed maxillary superimposition plane can be used as a regional superimposition technique.  

• Subjects / Keywords

  • Superimposition
  • Cone beam computed tomography

• Graduation date

  Spring 2014

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3PG1HV72

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.