The Use of 2D and 3D Imaging Modalities and Its Influence on Diagnosis and Treatment Planning in Orthodontics

The recruitment status of this study is unknown because the information has not been verified recently.
Verified September 2010 by Universitaire Ziekenhuizen Leuven.
Recruitment status was  Not yet recruiting
Katholieke Universiteit Leuven
Information provided by (Responsible Party):
Universitaire Ziekenhuizen Leuven Identifier:
First received: November 22, 2010
Last updated: September 28, 2011
Last verified: September 2010

November 22, 2010
September 28, 2011
January 2012
Not Provided
Cephalometric analysis [ Time Frame: at treatment planning step and after 2 years of treatment ] [ Designated as safety issue: No ]
linear and angular cephalometric measurement
  • Cephalometric analysis
  • Treatment option
Complete list of historical versions of study NCT01246830 on Archive Site
outcome of orthodontic treatment [ Time Frame: after 2 years of treatment ] [ Designated as safety issue: No ]
outcome of orthodontic treatment
Not Provided
Not Provided
The Use of 2D and 3D Imaging Modalities and Its Influence on Diagnosis and Treatment Planning in Orthodontics
The Use of 2D and 3D Imaging Modalities and Its Influence on Diagnosis and Treatment Planning in Orthodontics

Research questions:

  1. Will the panoramic images derived from cone beam CT data give better diagnostic ability than conventional panoramic radiographs?
  2. Will 3D cephalometric analysis offer the orthodontists and surgeons better information for treatment planning?
  3. Will the 3D cephalometric analysis give more accurate treatment plan and better treatment outcome?

General hypothesis and special aims

Overall aims:

  • To compare 2D versus 3D cephalometric analysis: treatment planning and therapeutic outcome.
  • To determine the accuracy and diagnostic ability and usability of the 3D cephalometric analysis.
  • To evaluate the diagnostic ability and usability of the panoramic image derived from cone beam CT data as compared to 2D panoramic images.
  • To evaluate the value of the cone beam CT data in cephalometric analysing process for orthodontic and maxillofacial surgery treatment.


  1. The availability of the 3D cephalometric analysis influences the orthodontic and maxillofacial treatment plan and decision, and might change the treatment outcome.
  2. Panoramic images derived from cone beam CT data may provide equal information for diagnosis as conventional panoramic images.
  3. Cone beam CT will be able to replace "classic orthodontic imaging" being more time and dose efficient and having a beneficial effect on treatment outcome.
Not Provided
Observational Model: Case Control
Time Perspective: Prospective
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Non-Probability Sample

Patients who are seeking orthodontic and maxillofacial surgery treatments at the University Hospital Leuven with the need of conventional panoramic radiographs, cephalometric radiographs and cone beam CT images.

  • Orthodontics
  • Malocclusion
  • Impacted Tooth
  • Cephalometry
  • Cone-Beam Computed Tomography
  • Panoramic Radiography
  • Radiation: Panoramic radiograph, Cephalometric radiograph
    2D images that are used for orthodontic treatment planning
  • Radiation: Cone-beam computed tomography (CBCT)
    CBCT data will be used in 3D cephalometric analysis softwares
  • 3D cephalometric analysis
    Intervention: Radiation: Cone-beam computed tomography (CBCT)
  • 2D cephalometric analysis
    Intervention: Radiation: Panoramic radiograph, Cephalometric radiograph

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Not yet recruiting
Not Provided
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Inclusion Criteria:

  • age 12-25 years old
  • Patients with malocclusions
  • Patients with jaw relation defect both with or without the need of orthognathic surgery
  • Patients with maxillofacial defects: tumors and trauma
  • Patients with eruption problems: embedded or impacted teeth which have to be removed

Exclusion Criteria:

  • Patients with congenital deformities
  • Patients with systemic diseases that may effect the growth formation: growth factor defect and thyroid hormone defect.
12 Years to 25 Years
Contact: Pisha Pittayapat, D.D.S., M.Sc. +3216332951
Contact: Reinhilde Jacobs, D.D.S., M.Sc., PhD +3216332410
Universitaire Ziekenhuizen Leuven
Universitaire Ziekenhuizen Leuven
Katholieke Universiteit Leuven
Not Provided
Universitaire Ziekenhuizen Leuven
September 2010

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP