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J Dent Educ. 72(4): 494-502 2008
© 2008 American Dental Education Association
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Educational Methodologies

A Virtual System for Cavity Preparation in Endodontics

Ioannis Marras; Nikolaos Nikolaidis, Ph.D.; Georgios Mikrogeorgis, Ph.D.; Kleoniki Lyroudia, Ph.D.; Ioannis Pitas, Ph.D.

Key words: virtual reality, virtual tooth drilling, virtual cavity preparation, dental informatics, dental simulator

Submitted for publication 02/09/07; accepted 02/04/08

This article presents a novel virtual teeth drilling system designed to aid dentists, dental students, and researchers in getting acquainted with teeth anatomy, the handling of drilling instruments, and the challenges associated with drilling procedures during endodontic therapy. The system is designed to be used for educational and research purposes in dental schools. The application features a 3D face and oral cavity model constructed using anatomical data that can be adapted to the characteristics of a specific patient using either facial photographs or 3D data. Animation of the models is also feasible. Virtual drilling using a Phantom Desktop (Sensable Technologies Inc., Woburn, MA) force feedback haptic device is performed within the oral cavity on 3D volumetric and surface models of teeth, obtained from serial cross sections of natural teeth. Final results and intermediate steps of the drilling procedure can be saved on a file for future use. The application has the potential to be a very promising educational and research tool that allows the user to practice virtual teeth drilling for endodontic cavity preparation or other related procedures on high-detail teeth models placed within an adaptable and animated 3D face and oral cavity model.






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