Craniofacial deformities are among the most common of all birth defects, with 1- 2% of the US population having a deformity severe enough to be disabling or stigmatizing. Surgical procedures continue to be developed to reduce the serious functional and psychosocial effects of these conditions. But most procedures have not been assessed in a systematic way, and for a variety of reasons, many could never be assessed in a randomized clinical trial. Observational studies of the physiologic adaptations post-surgery have indicated that longitudinal assessments are as important. However, the surgeon's ability to assess complex corrective craniofacial procedures has been hampered by the lack of computational and analytical tools for 3D quantitative evaluation of longitudinal data. An image analysis system to register longitudinal Cone-Beam CT scans using the surface of the cranial base is a first step in the process of making 3D scans clinically useful. In this proposal, we are validating and applying a new model to quantify craniofacial deformity surgical outcomes. Using state of the art image analysis methods, regional skeletal changes due to surgical correction and post-surgical remodeling will be quantified. Our multidisciplinary team is well qualified to address these aims. This work will provide preliminary data for future research applications on 3D computer simulation for diagnosis and surgical treatment planning, and for outcome assessments of new treatment procedures. Public Health Relevance: Craniofacial deformities are among the most common of all birth defects, with 1- 2% of the US population having a deformity severe enough to be disabling or stigmatizing. Surgical procedures continue to be developed to reduce the serious functional and psychosocial effects of these conditions. However, the surgeon's ability to assess complex corrective craniofacial procedures has been hampered by the lack of computational and analytical tools for 3D quantitative evaluation of longitudinal data. In this proposal, we are validating and applying a new model to quantify craniofacial deformity surgical outcomes. This work will provide preliminary data for future research applications on 3D computer simulation for diagnosis and surgical treatment planning, and for outcome assessments of new treatment procedures. ? ? ?

Public Health Relevance

Craniofacial deformities are among the most common of all birth defects, with 1- 2% of the US population having a deformity severe enough to be disabling or stigmatizing. Surgical procedures continue to be developed to reduce the serious functional and psychosocial effects of these conditions. However, the surgeon's ability to assess complex corrective craniofacial procedures has been hampered by the lack of computational and analytical tools for 3D quantitative evaluation of longitudinal data. In this proposal, we are validating and applying a new model to quantify craniofacial deformity surgical outcomes. This work will provide preliminary data for future research applications on 3D computer simulation for diagnosis and surgical treatment planning, and for outcome assessments of new treatment procedures.

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Small Research Grants (R03)
Project #
1R03DE018962-01A1
Application #
7589103
Study Section
Special Emphasis Panel (ZDE1-RK (44))
Program Officer
Atkinson, Jane C
Project Start
2008-09-30
Project End
2010-08-31
Budget Start
2008-09-30
Budget End
2009-08-31
Support Year
1
Fiscal Year
2008
Total Cost
$110,719
Indirect Cost
Name
University of North Carolina Chapel Hill
Department
Dentistry
Type
Schools of Dentistry
DUNS #
608195277
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599
de Paula, L K; Ruellas, A C O; Paniagua, B et al. (2013) One-year assessment of surgical outcomes in Class III patients using cone beam computed tomography. Int J Oral Maxillofac Surg 42:780-9
Huanca Ghislanzoni, Luis T; Lineberger, Megan; Cevidanes, Lucia H S et al. (2013) Evaluation of tip and torque on virtual study models: a validation study. Prog Orthod 14:19
Alhadidi, Abeer; Cevidanes, Lucia H; Paniagua, Beatriz et al. (2012) 3D quantification of mandibular asymmetry using the SPHARM-PDM tool box. Int J Comput Assist Radiol Surg 7:265-71
de Paula, Leonardo Koerich; Ackerman, James L; Carvalho, Felipe de Assis Ribeiro et al. (2012) Digital live-tracking 3-dimensional minisensors for recording head orientation during image acquisition. Am J Orthod Dentofacial Orthop 141:116-23
Paniagua, Beatriz; Cevidanes, Lucia; Walker, David et al. (2011) Clinical application of SPHARM-PDM to quantify temporomandibular joint osteoarthritis. Comput Med Imaging Graph 35:345-52
Almeida, R C; Cevidanes, L H S; Carvalho, F A R et al. (2011) Soft tissue response to mandibular advancement using 3D CBCT scanning. Int J Oral Maxillofac Surg 40:353-9
Cevidanes, Lucia H C; Oliveira, Ana Emilia Figueiredo; Grauer, Dan et al. (2011) Clinical application of 3D imaging for assessment of treatment outcomes. Semin Orthod 17:72-80
Baccetti, T; De Clerck, H J; Cevidanes, L H et al. (2011) Morphometric analysis of treatment effects of bone-anchored maxillary protraction in growing Class III patients. Eur J Orthod 33:121-5
Grauer, Dan; Cevidanes, Lucia H; Tyndall, Donald et al. (2011) REGISTRATION OF ORTHODONTIC DIGITAL MODELS. Craniofac Growth Ser 48:377-391
Paniagua, Beatriz; Cevidanes, Lucia; Zhu, Hongtu et al. (2011) Outcome quantification using SPHARM-PDM toolbox in orthognathic surgery. Int J Comput Assist Radiol Surg 6:617-26

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