Voxel-based interactive haptic simulation of dental drilling
Refereed conference paper presented and published in conference proceedings

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AbstractHaptics is one of the most important sensations for dentists to prepare cavity in dental surgery, which is however not easy to simulate in a computer system because of the large drilling force and the small speed of movement and material removal. In this paper, we present a fully voxel-based approach to interactively simulate dental drilling. Different from those voxel/mesh hybrid models, the drilling forces are computed directly from the voxel-representation while considering the factors of teeth's material properties, the posture and forward speed of dentist's drill and the contact surface area. To overcome force discontinuity caused by removal of tooth material, we define two layers of voxels on drill, where the boundary voxels are only employed to compute force feedback and the interior voxels are adopted to remove materials from teeth. The experimental result shows that our force model can produce smooth and large force feedback at a slow movement on haptic devices. Other than haptic rendering, a real-time filtering method directly using voxel representation has also been developed to improve visual rendering in dental simulation. Copyright © 2009 by ASME.
All Author(s) ListWu J., Yu G., Wang D., Zhang Y., Wang C.C.L.
Name of Conference2009 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC2009
Start Date of Conference30/08/2009
End Date of Conference02/09/2009
Place of ConferenceSan Diego, CA
Country/Region of ConferenceUnited States of America
Volume Number2
Issue NumberPART A
Pages39 - 48
LanguagesEnglish-United Kingdom
KeywordsDental simulation, Drilling force modeling, Haptic rendering, Visual rendering, Voxel model

Last updated on 2020-09-08 at 03:21