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The aim of the present longitudinal cephalometric study was to evaluate the dentofacial shape changes induced by activator treatment between 9.5 and 11.5 years in male Class II patients. For a rigorous morphometric analysis, a thin-plate spline analysis was performed to assess and visualize dental and skeletal craniofacial changes. Twenty male patients with(More)
An analysis and visualization of craniofacial shape changes due to growth or orthodontic treatment is presented. The suggested method is based on an adapted Karhunen-Loève decomposition of time-discrete data based on landmarks in lateral X-rays of the skull. It allows for a reduction of the high-dimensional dynamic problem to a few spatial modes(More)
An analysis, visualization and modelling of the dynamics of craniofacial growth is presented, which is based on a Karhunen–Loève decomposition of time-discrete landmark data describing the craniofacial skeleton and its growth. This allows for a clear and suggestive depiction of craniofacial growth patterns and their dynamical behaviour, which is necessary(More)
OBJECTIVE An approach based on Euclidean distances between cephalometric landmarks is presented (1) to visualize and localize the individual shape changes of the complex craniofacial skeleton during growth and (2) to depict the individual dynamic behavior of developmental size and shape changes. PATIENTS AND METHOD Growth-related craniofacial changes were(More)
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