| 摘要 |
This invention is an image, sound and feeling simulation system (50) for dentist ry, comprising a dental hand-held handpiece (52) having a drill (54) for drilling a cavity (56) in a tooth (58), the drill (54) h aving a drilling end (60), the dental handpiece (52) being shaped and dimensioned suitable to be held in the hand of a user, a first three-dimensi onal sensor (62) providing the system (50) with position and operation in space of at least the drill (54); and a data processing and display unit (68) for simulating of at least the drilling end (60) of the drill (54). The system (50) further comprises means to control the flow of c ompressed air operating the drill (54) and thus to control the rotation of the drill (54) in order to imitate the sound and hand feeling associ ated when drilling through tooth layers of different hardness.
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