Malocclusion
Conditions
Keywords
cephalometry, three-dimensional, CT scan, lateral radiography, facial symmetry, maxillomandibular dysmorphoses
Brief summary
Development of three-dimensional craniofacial cephalometric analysis for virtual planning in orthognathic surgery.
Detailed description
Cone beam computed tomography is taken for diagnosis independently from this study. Investigators are using this medical imaging for performing the 3D cephalometric analysis. Investigators apply a set of well described landmarks of three-dimensional reconstruction of the skull from patients suffering from diverse craniofacial malformations. Then a set of specific measurements is taken from the patient and provide insights how to modify the anatomy of the patient to improve the skull's architecture and symmetry
Interventions
A preoperative CBCT is performed for all patients in this study for medical reason
One cone beam computer tomography examination before surgery
Sponsors
Study design
Eligibility
Inclusion criteria
* maxillomandibular dysmorphoses, * facial asymmetry, * craniofacial syndromes
Exclusion criteria
* patients with orthodontic treatment only * growing patients
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| topological description of maxillomandibular dysmorphosis (angles, distances) | 2014 | Anterior cranial base angle on three-dimensional CT recostruction of the skull (in degrees) Posterior cranial base angle on three-dimensional CT recostruction of the skull (in degrees) Ratio between distance from nasion to anterior nasal spine/anterior nasal spine to chin landmark (without unit of maesurment) Measurements between various anatomic landmarks for orbits and maxillary sinus structures on the three-dimensional CT reconstruction of the patient's skull (in mm). |
Countries
Belgium