Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Papers
Development of a multi-layered virtual tooth model for the haptic dental training system
Yoshinori YOSHIDASatoshi YAMAGUCHIYusuke KAWAMOTOHiroshi NOBORIOShinya MURAKAMITaiji SOHMURA
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JOURNAL FREE ACCESS

2011 Volume 30 Issue 1 Pages 1-6

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Abstract

A virtual reality (VR) haptic dental training system could be a promising tool for future dental education. One major challenge is to develop a virtual tooth model which similarly reflected a real tooth having multiple layers with different mechanical hardness in each layer. The multi-layered virtual tooth model was successfully constructed in our virtual system. The constructed model allows us to feel tooth cutting which is similar to that with a real tooth. Through a cutting experiment by using the real tooth, a spring coefficient and a damping coefficient of a dental hard tissue were determined 0.8 N/mm and 1.79 Nsec/mm respectively. The feedback force smoothly altered when crossing the border of regions having different mechanical hardnesses. The constructed model introduced in this study could be a promising tool for acquiring dental hand skills in a virtual learning system.

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© 2011 The Japanese Society for Dental Materials and Devices
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