Journal ArticleDOI
Octree-based Virtual Dental Training System with a Haptic Device
TLDR
In this paper, the authors proposed a new approach that utilizes the so-called EP (Edge Proportion) value, local material stiffness and implicit function to develop a novel dental training system which has useful characteristics such as efficient collision detection, stable haptic interaction and accurate sculpting simulation.Abstract:
The virtual dental training system using a haptic device is becoming a very important training tool for dental education. We propose a new approach that utilizes the so-called EP (Edge Proportion) value, local material stiffness and implicit function to develop a novel dental training system which has useful characteristics such as efficient collision detection, stable haptic interaction and accurate sculpting simulation. In the efficient collision detection approach, the oriented bounding box tree and EP value can be quickly updated for collision detection. The EP value is very important in our approach, because it can also be used to compute haptic force and update the tooth model. In the stable haptic interaction approach, we use the spring-damper force model and a simple force filter to obtain stable force feedback. Finally, in the precision sculpting simulation, an implicit function is employed to exactly represent various kinds of dental tools so that accurate calculation of cutter- surface ...read more
Citations
More filters
Journal ArticleDOI
Intelligent dental training simulator with objective skill assessment and feedback
TL;DR: A VR dental training simulator that provides a virtual reality (VR) environment with haptic feedback for dental students to practice dental surgical skills in the context of a crown preparation procedure and a mechanism for providing objective skill assessment and feedback is introduced.
Journal ArticleDOI
Physics-Based Haptic Simulation of Bone Machining
Mohammadreza Arbabtafti,Majid M. Moghaddam,A. Nahvi,M. Mahvash,B Richardson,Bijan Shirinzadeh +5 more
TL;DR: A physics-based training simulator for bone machining that uses voxels that carry bone material properties to represent the volumetric haptic body and to apply underlying physical changes during machining.
Journal Article
An Overview of Virtual and Augmented Reality in Dental Education
Mihaela Dut,Corneliu Amariei,Crenguta M. Bogdan,Dorin M. Popovici,Nicolae Ionescu,Cristina Nuca +5 more
TL;DR: It can be concluded that virtual and augmented reality systems will play an increasing role in dental education and are likely to change clinical training and encourage the use of reflective forms of assessment.
Journal ArticleDOI
Development of a multi-layered virtual tooth model for the haptic dental training system
Yoshinori Yoshida,Satoshi Yamaguchi,Yusuke Kawamoto,Hiroshi Noborio,Shinya Murakami,Taiji Sohmura +5 more
TL;DR: The multi-layered virtual tooth model was successfully constructed in this study and allows us to feel tooth cutting which is similar to that with a real tooth.
Proceedings ArticleDOI
Augmented reality haptics system for dental surgical skills training
Phattanapon Rhienmora,Kugamoorthy Gajananan,Peter Haddawy,Matthew N. Dailey,Siriwan Suebnukarn +4 more
TL;DR: Preliminary results from an initial evaluation show that the system is a promising tool to supplement dental training and that there are advantages of the AR over the VR approach.
References
More filters
Proceedings ArticleDOI
OBBTree: a hierarchical structure for rapid interference detection
TL;DR: A data structure and an algorithm for efficient and exact interference detection amongst complex models undergoing rigid motion that can robustly and accurately detect all the contacts between large complex geometries composed of hundreds of thousands of polygons at interactive rates are presented.
Journal ArticleDOI
Stable haptic interaction with virtual environments
Richard Adams,Blake Hannaford +1 more
TL;DR: By decoupling the haptic display control problem from the design of virtual environments, the use of a virtual coupling network frees the developer of haptic-enabled virtual reality models from issues of mechanical stability.
Journal ArticleDOI
Haptics in virtual environments: Taxonomy, research status, and challenges
TL;DR: The major advances in a new discipline, Computer Haptics (analogous to computer graphics), that is concerned with the techniques and processes associated with generating and displaying haptic stimuli to the human user are described.
Journal ArticleDOI
Haptic rendering: introductory concepts
TL;DR: This work surveys current haptic systems and discusses some basic haptic-rendering algorithms, and describes the process by which desired sensory stimuli are imposed on the user to convey information about a virtual haptic object.
Proceedings ArticleDOI
Sculpting: an interactive volumetric modeling technique
Tinsley A. Galyean,John Hughes +1 more
TL;DR: The technique provides an intuitive direct interaction, as if the user were working with clay or wax, so the technique is appropriate for modeling a boulder or a tooth but not for modeled a crankshaft.
Related Papers (5)
Haptic interaction and volume modeling techniques for realistic dental simulation
Laehyun Kim,Se Hyung Park +1 more