Anticipating root displacements: Unlocking new prospects - 20/09/11
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Summary |
Objective |
The aim of this study was to visualize and quantify root displacements in the bone base of a patient before orthodontic treatment and obtain an optimal set-up that would include information on both coronal and root movements.
Material and method |
Data from a patient’s scan records, the initial plaster model and scanned set-up are migrated into the Amira® software for advanced mesh and surface analysis. Using this software, each tooth of the initial 3D-reconstruction scan is isolated then superimposed over that of the initial model. The set-up is then positioned onto the initial model at second molar level and dragged onto the initial 3D reconstruction. Lastly, the roots are repositioned on the crowns on the set-up.
Results |
This study enabled the visualization and quantification of dental displacements (crowns and roots) from initial to expected final position in a three-dimensional space reconstruction.
Discussion–Conclusion |
This technique, carried out routinely thanks to the advent of cone beam tomography, can help optimize orthodontic treatments, notably by anticipating root proximity issues during set-up preparation.
Le texte complet de cet article est disponible en PDF.Key-words : Dentofacial orthopedics, 3D modeling, Root displacement, Cone beam
Plan
Vol 9 - N° 3
P. 286-297 - septembre 2011 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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