Toward Stable and Realistic Haptic Interaction for Tooth Preparation Simulation
Identifieur interne : 003F09 ( Main/Merge ); précédent : 003F08; suivant : 003F10Toward Stable and Realistic Haptic Interaction for Tooth Preparation Simulation
Auteurs : JUN WU [République populaire de Chine, Hong Kong] ; DANGXIAO WANG [République populaire de Chine] ; Charlie C. L. Wang [Hong Kong] ; YURU ZHANG [République populaire de Chine]Source :
- Journal of computing and information science in engineering [ 1530-9827 ] ; 2010.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Chirurgie.
English descriptors
- KwdEn :
Abstract
In this paper, we present the methods to generate a stable and realistic simulator for dental surgery. First, a simplified force model is derived from grinding theory by considering the complex bur shape and dental handpiece's dynamic behavior. While the force model can be evaluated very fast to fulfill the high update rate of haptic rendering, it also explains basic haptic sensation features in tooth preparation operation. Second, as direct rendering of this damping-like force model may induce instability of the haptic device, we apply a virtual coupling based method to guarantee the stability in haptic rendering. Furthermore, implicit integration of the bur's motion equation is utilized to ensure numerical stability. Third, to overcome force discontinuity caused by locally removing tooth materials, we define a two-layer based representation for the bur, where the boundary voxels are adopted to compute forces and the interior voxels are employed to remove materials from teeth. The experimental results agree with the real sensation described by experienced dentists.
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Pascal:11-0001210Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Complex shape</term>
<term>Dentistry</term>
<term>Discontinuity</term>
<term>Equation of motion</term>
<term>Experimental study</term>
<term>Grinding</term>
<term>Machining</term>
<term>Modeling</term>
<term>Numerical stability</term>
<term>Sensation</term>
<term>Sensorial perception</term>
<term>Simulator</term>
<term>Surgery</term>
<term>Tactile sensitivity</term>
<term>Tridimensional image</term>
<term>Updating</term>
<term>Voxel</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Simulateur</term>
<term>Usinage</term>
<term>Dentisterie</term>
<term>Mise à jour</term>
<term>Image tridimensionnelle</term>
<term>Sensibilité tactile</term>
<term>Chirurgie</term>
<term>Rectification surface</term>
<term>Forme complexe</term>
<term>Perception sensorielle</term>
<term>Modélisation</term>
<term>Sensation</term>
<term>Equation mouvement</term>
<term>Stabilité numérique</term>
<term>Discontinuité</term>
<term>Etude expérimentale</term>
<term>Voxel</term>
<term>.</term>
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<front><div type="abstract" xml:lang="en">In this paper, we present the methods to generate a stable and realistic simulator for dental surgery. First, a simplified force model is derived from grinding theory by considering the complex bur shape and dental handpiece's dynamic behavior. While the force model can be evaluated very fast to fulfill the high update rate of haptic rendering, it also explains basic haptic sensation features in tooth preparation operation. Second, as direct rendering of this damping-like force model may induce instability of the haptic device, we apply a virtual coupling based method to guarantee the stability in haptic rendering. Furthermore, implicit integration of the bur's motion equation is utilized to ensure numerical stability. Third, to overcome force discontinuity caused by locally removing tooth materials, we define a two-layer based representation for the bur, where the boundary voxels are adopted to compute forces and the interior voxels are employed to remove materials from teeth. The experimental results agree with the real sensation described by experienced dentists.</div>
</front>
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<name sortKey="Dangxiao Wang" sort="Dangxiao Wang" uniqKey="Dangxiao Wang" last="Dangxiao Wang">DANGXIAO WANG</name>
<name sortKey="Yuru Zhang" sort="Yuru Zhang" uniqKey="Yuru Zhang" last="Yuru Zhang">YURU ZHANG</name>
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<name sortKey="Wang, Charlie C L" sort="Wang, Charlie C L" uniqKey="Wang C" first="Charlie C. L." last="Wang">Charlie C. L. Wang</name>
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