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Three-dimensional Assessment of Craniofacial Structures

This study has suspended participant recruitment.
Information provided by (Responsible Party):
University of Minnesota - Clinical and Translational Science Institute Identifier:
First received: September 27, 2010
Last updated: November 12, 2013
Last verified: November 2013

The goal of this project is to reduce the radiation exposure in orthodontic patients by the use of a new imaging protocols based on non-ionizing orthodontic records (e.g. digital dental models, three-dimensional photograph) The first step in this process is to develop and validate an orthodontic analysis able to assess craniofacial proportions, dental, skeletal, and facial soft tissue. The investigators working hypothesis is that data from three-dimensional facial photographs and from digital dental casts can be registered accurately and consistently, and the diagnostic information about tooth position and facial soft-tissue derived from them are comparable to x-ray derived data


Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Assessment of Dental, Skeletal Pattern, and Soft Tissue Using Three-dimensional Images

Further study details as provided by University of Minnesota - Clinical and Translational Science Institute:

Primary Outcome Measures:
  • Assessment of dental and soft tissue position relative to cone-beam computed tomography (CBCT) [ Time Frame: At the time of initial orthodontic records ] [ Designated as safety issue: No ]

Estimated Enrollment: 100
Study Start Date: September 2010
Estimated Study Completion Date: July 2014
Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Current patients attending the University of Minnesota School of Dentistry Orthodontic Clinic, and who voluntarily agreed to participate in this study.


Inclusion Criteria:

  • Full permanent dentition
  • Complete set of digital orthodontic records
  • Must be able to follow directions

Exclusion Criteria:

  • Incomplete orthodontic records
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01210547

United States, Minnesota
University of Minnesota Orthodontic Clinic
Minneapolis, Minnesota, United States, 55455
Sponsors and Collaborators
University of Minnesota - Clinical and Translational Science Institute
Principal Investigator: Brent E Larson, DDS University of Minnesota - Clinical and Translational Science Institute
  More Information

No publications provided

Responsible Party: University of Minnesota - Clinical and Translational Science Institute Identifier: NCT01210547     History of Changes
Other Study ID Numbers: 0912M75577
Study First Received: September 27, 2010
Last Updated: November 12, 2013
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Stomatognathic Diseases
Tooth Diseases processed this record on November 25, 2014